Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. -History

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. -History
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She can find the nature of the gas by using a wet litmus paper. After bringing the litmus paper in contact with the gas, if it turns the blue litmus paper into red, it is acidic. Similarly, if it turn the red litmus into blue, it is basic. (b) (i) Carbon + Oxygen → Carbon dioxide (ii) Carbon dioxide + Lime water → Milky
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An aluminium strip is kept immersed in a freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that a) Green solution slowly turns brown b) Lower end of the test tube becomes slightly warm c)A colourless gas with smell of burning sulphur is evolved c)Light green solution changes to blue

Description : An aluminium strip is kept immersed in a freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that a) Green solution slowly turns brown b) Lower end of the test ... c)A colourless gas with smell of burning sulphur is evolved c)Light green solution changes to blue

Last Answer : a) Green solution slowly turns brown

Two inorganic compounds A and B were heated in a dry test tube. A evolved a colourless gas which turned lead acetate paper black and B evolved a gas w

Description : Two inorganic compounds A and B were heated in a dry test tube. A evolved a colourless gas which turned lead acetate paper black and B evolved a gas w

Last Answer : Two inorganic compounds A and B were heated in a dry test tube. A evolved a colourless gas which turned lead acetate ... ` D. `S^(2-), NO_(3)^(-)`

A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write balanced chemical equation for both the change observed?

Description : A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write balanced chemical equation for both the change observed?

Last Answer : Answer. When dilute HCl is added to marble which is calcium carbonate, it forms calcium chloride, water and carbon dioxide. The chemical equation for the reaction is as follows: CaCO3 + 2HCl → CaCl2 + H2O ... reaction between lime water and carbon dioxide is as follows: Ca(OH)2 + CO2 → CaCO3 + H2O

Q.1. Give two examples of different types of global exchanges which took place before the 17th century, choosing one example from Asia, and one from America. -History

Description : Q.1. Give two examples of different types of global exchanges which took place before the 17th century, choosing one example from Asia, and one from America. -History

Last Answer : Asia: The silk routes are a good example of vibrant pre-modern trade before the 17th century. The historians have identified several silk routes, overland and by sea, linking Asia with Europe ... El Dorado, the fabled city of gold. Thus there were global exchanges before the seventeenth century.

Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y (a). X- Sulphuric acid and Y- Oxygen gas (b). X- Hydrochloric acid and Y- Oxygen gas (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Description : Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and ... (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Last Answer : (c). X- Sulphuric acid and Y- Hydrogen gas

What do you call to the liquid that you have collected in the test tube?

Description : What do you call to the liquid that you have collected in the test tube?

Last Answer : Need answer

A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and then cooled with water. The gas evolved is

Description : A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and then cooled with water. The gas evolved is

Last Answer : A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and then cooled with ... . ammonia B. hydrogen C. nitrogen D. oxygen

What was North Korea like before Kim Jong Sung took power?

Description : What was North Korea like before Kim Jong Sung took power?

Last Answer : answer:I'm not sure which one you mean. The three names are Kim Il-sung (installed in 1948) Kim Jong-il (succeeded in 1994) Kim Jong-un (succeeded in 2012) There are variants on the ... came to power when Korea was divided into North and South in 1948 and he became the leader of North Korea.

Jallianwala incident took place at (SSC CGL 1st Sit. 2015) (a) Lucknow (b) Surat (c) Amritsar (d) Allahabad

Description : Jallianwala incident took place at (SSC CGL 1st Sit. 2015) (a) Lucknow (b) Surat (c) Amritsar (d) Allahabad

Last Answer : (c) Amritsar

Coronation of Shivaji took place in (SSC CGL 2nd Sit. 2011) (a) 1627 A.D. (b) 1674 A.D. (c) 1680 A.D. (d) 1670 A.D

Description : Coronation of Shivaji took place in (SSC CGL 2nd Sit. 2011) (a) 1627 A.D. (b) 1674 A.D. (c) 1680 A.D. (d) 1670 A.D

Last Answer : (b) 1674 A.D

Are wood burning BBQ grills better than charcoal grills?

Description : Are wood burning BBQ grills better than charcoal grills?

Last Answer : Wood grills are more expensive, but your food has a better flavor. Charcoal grills are easier to find than the wood grills. However, the charcoal grills take more time to light and to get your meal ... wood grill will give you your meal in about 30 minutes. I would recommend the the wood grill.

Animal charcoal is obtained by (a) the destructive distillation of bones (b) burning the bones of animals in contact with air (c) burning the flesh of animals (d) burning the bones of animals out of contact with air

Description : Animal charcoal is obtained by (a) the destructive distillation of bones (b) burning the bones of animals in contact with air (c) burning the flesh of animals (d) burning the bones of animals out of contact with air

Last Answer : Ans:(d)

A student took Sodium Sulphate solution in a test tube and added Barium Chloride solution to it. He observed that an insoluble substance has formed. The colour and molecular formula of the insoluble substance is (a) Grey, Ba2SO4 (b) Yellow, Ba(SO4)2, (c) White, BaSO4 (d) Pink, BaSO4,

Description : A student took Sodium Sulphate solution in a test tube and added Barium Chloride solution to it. He observed that an insoluble substance has formed. The colour and molecular formula of the insoluble substance is (a) Grey, Ba2SO4 (b) Yellow, Ba(SO4)2, (c) White, BaSO4 (d) Pink, BaSO4,

Last Answer : Answer: (c) White, BaSO4

The radioactive isotope of cerium - 137 of weigh 8g was collected on 1st Feb. 2006 kept in a sealed tube. On 1st July, 2006, it was found that only 0.

Description : The radioactive isotope of cerium - 137 of weigh 8g was collected on 1st Feb. 2006 kept in a sealed tube. On 1st July, 2006, it was found that only 0.

Last Answer : The radioactive isotope of cerium - 137 of weigh 8g was collected on 1st Feb. 2006 kept in a sealed tube. On ... days B. 30 days C. 25 days D. 50 days

Why is the amount of gas collected in one of the test tubes in text book Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas. -Chemistry-10

Description : Why is the amount of gas collected in one of the test tubes in text book Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas. -Chemistry-10

Last Answer : In Activity 1.7, water is electrolysed to give H2 gas at one electrode and O2 gas at the other electrode. 2H2O(l) → 2H2(g) + O2(g) Thus two molecules of water on electrolysis give two ... oxygen gas or in other words the amount of hydrogen gas collected would be double than that of oxygen gas.

Which of the following animals has tube- within-tube type of body plan evolved along deuterostomic evolutionary line ?

Description : Which of the following animals has tube- within-tube type of body plan evolved along deuterostomic evolutionary line ?

Last Answer : Which of the following animals has tube- within-tube type of body plan evolved along ... Annelids B. Arthropods C. Echinoderms D. Molluscs

2 ml each of concentrated HCl, HNO3 and a mixture of concentrated hydrochloric acid and Concentrated nitric acid in the ratio of 3:1were taken in test tubes labelled as A, B and C, A small piece of metal was put in each test tube. No change occurred in test tubes A and B but the metal dissolved in test tube C. The metal could be: A) Al B) Au C) Pt D) Cu

Description : 2 ml each of concentrated HCl, HNO3 and a mixture of concentrated hydrochloric acid and Concentrated nitric acid in the ratio of 3:1were taken in test tubes labelled as A, B and C, A small piece of metal was put in ... the metal dissolved in test tube C. The metal could be: A) Al B) Au C) Pt D) Cu

Last Answer : B) Au

Burning hands and feet ? Today it will be 7-8 days. My hands and feet are burning. I don't feel that much during the day but it happens at night. I also took medicine and ate . After eating these two, it seemed a little less, again today there is no work. Please let me know !!

Description : Burning hands and feet ? Today it will be 7-8 days. My hands and feet are burning. I don't feel that much during the day but it happens at night. I also took medicine and ate . After eating these two, it seemed a little less, again today there is no work. Please let me know !!

Last Answer : Answer : Lack of Vitamins or Minerals- This type of problem is seen due to lack of some vitamins or minerals. Lack of thiamine , pyridoxine , cyanocobalamin , calcium , vitamin-D, etc. can cause ... there is no solution: Seek the help of a specialist to diagnose the exact cause of the disease.

His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan at Delhi on 4 February 1999. A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Description : His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan at ... A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Last Answer : ANSWER: D

His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan at Delhi on 4 February 1999. A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Description : His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan at ... A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Last Answer : ANSWER: D

112 His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan at Delhi on 4 February 1999. A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Description : 112 His bowling figures are best in test cricket history, took 10 wickets for only 53 runs vs Australia at Manchester, England on 26 July 1956 followed by Anil Kumble of India who took 10 for 74 vs Pakistan ... A. George Lohmann (Eng) B. Muralitharan (SL) C. Abdul Qadir (Pak) D. James Laker (Eng)

Last Answer : ANSWER: D

From "Master of Reality" by Mark Fiorentino, I took this piece of text. Do you think it's true?

Description : From "Master of Reality" by Mark Fiorentino, I took this piece of text. Do you think it's true?

Last Answer : No, I doubt it. He makes all sorts of unfounded and glib assumptions - it is a common belief and despite this misconception - and it sounds like he is expecting the reader to accept his ... connected assumptions. I have the impression that this has as much stability as a house built of cards.

Will you tell us a silly piece of misinformation that took you an embarrassingly long time to straighten out?

Description : Will you tell us a silly piece of misinformation that took you an embarrassingly long time to straighten out?

Last Answer : I'll start. When I was a kid my Grandma told me that if I crossed my eyes too long they would get stuck that way. But she went one step further and told me about a little girl in her neighborhood who ... 12 or 13 and I felt pretty dumb. She was dead then and I couldn't confront her about it lol.

Events in history that show how independence has evolved throughout society?

Description : Events in history that show how independence has evolved throughout society?

Last Answer : I think we’ve always been dependant on “society”. That is what makes us soooo successful as a species. Specialization opened up more opportunities for inventing and discovery. Without it we would still be wandering around hunting and gathering for our nutrition.

Any recommendations for good books on the history of Scotland?

Description : Any recommendations for good books on the history of Scotland?

Last Answer : Magnus Magnusson’s “Scotland:the Story of a Nation” is worth a look and it is quite readable. It was published in 2000 so isn’t right up to date.

How are you celebrating Black History Month?

Description : How are you celebrating Black History Month?

Last Answer : Is that a holiday there or just a celebration day? I could suggest searching for George Washington Carver to learn and appreciate the man. Basically he was a Black scientist who was born as a slave. And also I’m really curious about that CRT post :P

Did America, at any point in history, do something to Cambodia (details inside)

Description : Did America, at any point in history, do something to Cambodia (details inside)

Last Answer : Yes, we did. I can look up the specifics (or maybe @kritiper knows them; he's crafting a response right now), but my recollection is that the Americans pulled out and left them to their fate when ... on the subject of what happened in Cambodia under the Khmer Rouge, and this is how I remember it.

When you think about your family history does it make you sad or happy?

Description : When you think about your family history does it make you sad or happy?

Last Answer : I feel deep Pride. There are many great people and accomplishments in my family tree.

Can you help me fact-check my history textbooks?

Description : Can you help me fact-check my history textbooks?

Last Answer : They seem mostly true, albeit simplistic, with a little Nationalistic propaganda to help it go down better. America was a collection of colonies, and colonial history was necessarily exploitative. Those ... too powerful to be controlled, and wealth was too entrenched to cede power across the ocean.

When in history did the United States become the biggest economic and millitary power?

Description : When in history did the United States become the biggest economic and millitary power?

Last Answer : After World War Two. The transition period started under Teddy Roosevelt, and the Great White Fleet of steel battleships that toured the world to demonstrate naval superiority. But that wasn't fully ... as the only major economy that wasn't destroyed to some extent solidified the economic might.

Which people have made an impact in history in England?

Description : Which people have made an impact in history in England?

Last Answer : there are far too many to list. I’m sure this is something you can easily research on your own by searching for a short history of England or famous people in English history. This is an easy assignment which I am sure you are meant to do on your own.

Are there events in history that you thought you knew about but then you learn details much later that totally surprised you?

Description : Are there events in history that you thought you knew about but then you learn details much later that totally surprised you?

Last Answer : I was surprised by how much was omitted from standard texts and teaching. When I was in grade/middle school, in the early-mid 60s, no mention at all was made of Japanese-American internment camps. A ... 10th grade, and we were able to discuss it in school. It was heavily spun to justify it.

What is the biggest hoax in history that people still believe today?

Description : What is the biggest hoax in history that people still believe today?

Last Answer : .

Do any of you know any quotes or quips from people in history?

Description : Do any of you know any quotes or quips from people in history?

Last Answer : I’ll start..Daniel Boone was once queried by some admirers as to whether he had ever been lost in the wilderness. He responded that, “I can’t rightly say as I was ever lost, but I did get a mite bewildered once for a couple of weeks”. . .

Do you have a favorite or interesting history fact to share?

Description : Do you have a favorite or interesting history fact to share?

Last Answer : Canadian Prime Minster Justin Trudeau's father was Pierre Elliott Trudeau also a Canadian prime minster in the 70's.. Pierre Elliott Trudeau, was a Canadian politician who served as the 15th Prime Minister of Canada from ... 20, 1968, to June 4, 1979, and again from March 3, 1980, to June 30, 1984.

Is history a science?

Description : Is history a science?

Last Answer : Do you mean history as it happened or as reported?

Do you have a favorite history topic?

Description : Do you have a favorite history topic?

Last Answer : answer:If I had to be specific, I like to study Irish culture from the late Iron Age to the beginning of the Viking age. Trying to parse out the neo-pagan celtic nonsense from the actual ... are supposed to have taken place. There are other areas I enjoy studying, but that is my main focus.

Have you seen this history documentary?

Description : Have you seen this history documentary?

Last Answer : I’m on my phone right now, so I can’t check the accuracy of my memory, but I believe Cuba was under the protection, and therefore under the flag of the U.S. for a number of years after that war. I’ll look it up some time in the next 12 hours and verify or correct.

How can I learn about the history of everyday life?

Description : How can I learn about the history of everyday life?

Last Answer : The internet is a boon for finding out such information. I have had a blast for the past few years collaborating with my cousin in Australia, 9000 miles away from me, to help rebuild our combined ... there to help and thousands of folks willing to expend the time to help you expand your horizons.

When you learned about slavery and segregation in America, was it taught as American history, or more specifically Southern history?

Description : When you learned about slavery and segregation in America, was it taught as American history, or more specifically Southern history?

Last Answer : answer:US History. Not being from the South, we didn’t have a Southern History course. Public schools in the northwest tend to have a northwest history section, and teach about the indigenous people and how we were scumbags to them as we took their land, cheated them and killed them off.

Where's the best place to start if someone wants to learn about world history in extreme depth?

Description : Where's the best place to start if someone wants to learn about world history in extreme depth?

Last Answer : I’ve heard the history book by Bill Bryson is good. It’s called “A Short History of Nearly Everything”. I haven’t read it, but many of his other books are informative, funny, and easy to read.

Violations of Civil Rights that weren't fought for? What events in American history would be considered violations of TODAY's civil rights?

Description : Violations of Civil Rights that weren't fought for? What events in American history would be considered violations of TODAY's civil rights?

Last Answer : A prime example would be the interenment of Japanese Americans during the Second World War. Then there were the infamous McCarthy hearings wherein citizens were persecuted and found their lives and careers destroyed ... I could spend the rest of the day on this question but others deserve a chance.

Students of history and anthropology: does it ever get to you?

Description : Students of history and anthropology: does it ever get to you?

Last Answer : Certainly, as a scholar of history I have come across many horror stories and much despair. However, this is countered by many, many examples of determination, courage and sacrifice. Often the ... and documents I examine, some amazing and inspiring people. They give me hope for the future.

Is it possible to honor Confederate history in the US without glorifying racism? [Details]?

Description : Is it possible to honor Confederate history in the US without glorifying racism? [Details]?

Last Answer : No, it is not. Just as it is not possible to honour the 3rd Reich without glorifying the Holocaust. You can not just ignore the 11 million people that were murdered in the ... the primary reason for the secession in the declaration of causes' by various southern states, including Missouri

Have you heard of the "Bonus Army" in American history? [link] [details]?

Description : Have you heard of the "Bonus Army" in American history? [link] [details]?

Last Answer : answer:I knew the generalities, but your link provided more information than I had known before. It seems to me that Hoover was wrong in not firing MacArthur for crossing the bridge to Bonus City in the face ... if he had had the same type of lust for absolute power, and similar demons to Hitler's )

How a major in history can take me far?

Description : How a major in history can take me far?

Last Answer : It will take you as far as you want. If you're extremely passionate about history, then I see no reason why you should consider another major. There are some people in law school who were ... a useless major that gets constantly bashed). Just do internships, make connections, and get good grades.

How far can you reach back into history with 2 degrees of separation?

Description : How far can you reach back into history with 2 degrees of separation?

Last Answer : answer:Some time at the last half of the 18th century. As far as I know, the oldest person in my family tree lived during that period.

I want to study religion, and the social history of religion. Where should I start?

Description : I want to study religion, and the social history of religion. Where should I start?

Last Answer : The Egyptian Book of the Dead

Is anyone here really interested in history?

Description : Is anyone here really interested in history?

Last Answer : Absolutely not. I don’t have any interest whatsoever.

What is your favorite period in history, and what about it specifically do you find interesting?

Description : What is your favorite period in history, and what about it specifically do you find interesting?

Last Answer : The possible future as depicted in Star Trek. Because it is better than the present and all past periods of history combined.