The element which shows large number of allotropes among VIA group elements

The element which shows large number of allotropes among VIA group elements
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The element which shows large number of allotropes among VIA group elements A. S B. Se C. Po D. Te
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Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

Elements that show the properties of both metals and non-metals are called (a) Allotropes (b) Metalloids (c) Alloys (d) Colloids

Description : Elements that show the properties of both metals and non-metals are called (a) Allotropes (b) Metalloids (c) Alloys (d) Colloids

Last Answer : Ans:(b)

Elements that exist in two or more distinctly different solid forms are known as: w) azeotropes x) allotropes y) isotopes z) isochores

Description : Elements that exist in two or more distinctly different solid forms are known as: w) azeotropes x) allotropes y) isotopes z) isochores

Last Answer :  ANSWER: X -- ALLOTROPES 

Diamond and Graphite are allotropes of which element?

Description : Diamond and Graphite are allotropes of which element?

Last Answer : Carbon.

(A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Description : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Last Answer : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : ... is false D. (A) is false but (R) is true

The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_(2)SeltH_(2)S` ii) The order of B.P `H_(2)O

Description : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_(2)SeltH_(2)S` ii) The order of B.P `H_(2)O

Last Answer : The statements regarding hydrides of VIA group elements are i) The order of volatility `H_(2)OltH_(2)TeltH_ ... are correct D. `i` & iii are correct

Fullerenes form a class of carbon allotropes. The first one to be identified was - (1) C-59 (2) C-60 (3) C-61 (4) C-69

Description : Fullerenes form a class of carbon allotropes. The first one to be identified was - (1) C-59 (2) C-60 (3) C-61 (4) C-69

Last Answer : (2) C-60 Explanation: The first fullerene to be identified was C-60 which has carbon atoms arranged in the shape of a football. Since this looked like the geodesic dome designed by the US architect Buckminster Fuller, the molecule was named fullerene.

Two types of allotropes of carbon are?

Description : Two types of allotropes of carbon are?

Last Answer : (1) Crystalline (eg : diamond; graphite; fullerene; graphine) (2) Amorphous (eg: coal; char- coal)

Write Applications of Carbons Allotropes with examples?

Description : Write Applications of Carbons Allotropes with examples?

Last Answer : Ans. 1.Graphite is used as a lubricant, soft and slippery. 2. Diamond is used as aabrasive, cutting tool and in jewellery. 3. Fullerene is used in nanotechnology.

Write any two Allotropes of Carbon with one characterstic?

Description : Write any two Allotropes of Carbon with one characterstic?

Last Answer : Ans. Graphite-soft and slippery Diamond: Very Hard & Poor Conductor of electricity

Define Allotropes?

Description : Define Allotropes?

Last Answer : Ans. Substances showing similar chemical properties but different physical properties.

Which of the following VIA group element has maximum catenation capacity

Description : Which of the following VIA group element has maximum catenation capacity

Last Answer : Which of the following VIA group element has maximum catenation capacity A. S B. O C. Se D. Te

The element with least melting point in VIA group is

Description : The element with least melting point in VIA group is

Last Answer : The element with least melting point in VIA group is A. O B. S C. Se D. Te

Among the elements of the 3rd period from Na to Ar, pick out the element: (L-2) (a). with highest first ionization enthalpy. (b). with largest atomic radius. (c). that is most reactive non-metal. (d). that is most reactive metal.

Description : Among the elements of the 3rd period from Na to Ar, pick out the element: (L-2) (a). with highest first ionization enthalpy. (b). with largest atomic radius. (c). that is most reactive non-metal. (d). that is most reactive metal.

Last Answer : (a). Ar has highest first ionization enthalpy. (b). Na has large atomic radius (covalent radius). (c). Cl is more reactive non-metal in 3rd period. (d). Na is most reactive metal in third period.

I+watch+TV+shows+and+movies+online+via+an+LCD+monitor.+Will+the+quality+improve+much+if+I+use+a+TV+instead%3F+If+so%2C+why%3F?

Description : I+watch+TV+shows+and+movies+online+via+an+LCD+monitor.+Will+the+quality+improve+much+if+I+use+a+TV+instead%3F+If+so%2C+why%3F?

Last Answer : No it will be the same a goo atena helps

Which element of group V A shows maximum oxidation states ?

Description : Which element of group V A shows maximum oxidation states ?

Last Answer : Which element of group V A shows maximum oxidation states ? A. bismuth B. phosphorus C. nitrogen D. arsenic

Which element of group V A shows maximum oxidation states ?

Description : Which element of group V A shows maximum oxidation states ?

Last Answer : Which element of group V A shows maximum oxidation states ? A. bismuth B. phosphorus C. nitrogen D. arsenic

What element has an atomic number lower than that of aluminum and one less valence electron than group 16 elements?

Description : What element has an atomic number lower than that of aluminum and one less valence electron than group 16 elements?

Last Answer : Nitrogen

From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. (c) The element with smallest ionic radius. (d) The element with six electrons in the valence shell. (e) The element which is a liquid at room temperature. (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Description : From the elements: Cl, Br, F, O, Al, C, Li, Cs and Xe; choose the following: (a) The element with highest negative electron gain enthalpy. (b) The element with lowest ionization enthalpy. ( ... . (f)The element which belongs to zero group. (g) The elements which forms largest number of compounds.

Last Answer : Ans. (a). The element chlorine (Cl) has the highest negative electron gain enthalpy. (b). The element cesium (Cs) has lowest ionization enthalpy. (c). The element fluorine F has lowest atomic radius. (d ... zero group (or group 18). (g). The element carbon (C) forms the largest number of compounds.

Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Description : Name this chemical element. The principal use of this element has been in solid-state electronic devices, notably transistors. Its position in the periodic table is in group "4A". The element's atomic number is 32 and its chemical symbol is Ge.

Last Answer : ANSWER: GERMANIUM

The timer element found in a reverse power relay obtains its operating torque via _____________. A. line voltage B. the main bus C. electromagnets D. a separate battery source

Description : The timer element found in a reverse power relay obtains its operating torque via _____________. A. line voltage B. the main bus C. electromagnets D. a separate battery source

Last Answer : Answer: C

Which metal is more metallic in nature among 1A group elements ?

Description : Which metal is more metallic in nature among 1A group elements ?

Last Answer : Francium

The increasing order of reactivity among group 1 elements is Li<Na<K<Rb<Cs whereas among the group 17 elements, it is F>Cl>Br>I. Explain.

Description : The increasing order of reactivity among group 1 elements is Li

Last Answer : Ans. In group 1 elements (alkali metals) the reactivity of the metals is mainly due to the electron releasing tendency of their atoms, which is related to ionization enthalpy, Since ... electron gain enthalpy. Since both of them decrease down the group, the reactivity therefore decreases.

The deficiencies of micronutrients, not only affect growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport?(a) Co, Ni, Mo (b) Ca, K, Na (c) Mn, Co, Ca (d) Cu, Mn, Fe

Description : The deficiencies of micronutrients, not only affect growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both ... , Mo (b) Ca, K, Na (c) Mn, Co, Ca (d) Cu, Mn, Fe

Last Answer : d) Cu, Mn, Fe

Which of the following statements are not true in respect of HIV/AIDS transmission? (a) HIV infection is usually spread by having sexual (b) HIV frequently spreads among injection drug users who share syringes. (c) Women can spread HIV to their babies during pregnancy, birth or breast feeding. (d) HIV spreads through casual contact such as sharing towels and bedding or via swimming pools or toilet seats

Description : Which of the following statements are not true in respect of HIV/AIDS transmission? (a) HIV infection is usually spread by having sexual (b) HIV frequently spreads among injection drug users ... spreads through casual contact such as sharing towels and bedding or via swimming pools or toilet seats

Last Answer : Ans:(a)

When a friend or family member directs you (via link) to a large # pictures from their recent trip (we're talking at least 200), do you tend to look for (and click on) the ones with people that you know in it?

Description : When a friend or family member directs you (via link) to a large # pictures from their recent trip (we're talking at least 200), do you tend to look for (and click on) the ones with people that you know in it?

Last Answer : You're doing more than I would. There's no way I'd go through all of that. That's a lot to expect of you. A friend sent me about that many a couple of years ago from her trip to France. ... think it's inconsiderate to send that many & expect you to view them all. That's just my opinion, of course.

How do I compress a large PDF from a mac so I can send it VIA email?

Description : How do I compress a large PDF from a mac so I can send it VIA email?

Last Answer : answer:Do you have the original source text as a file? It sounds like your PDF is made from each page as an image, which makes it much much bigger (and harder to read) than if it uses the ... would be to regenerate the PDF so it's small. The easiest way to do this is probably using OpenOffice.

Can we send large files via Gmail?

Description : Can we send large files via Gmail?

Last Answer : Sending large files using Gmail is not easy. It is because Gmail limits attachments to only 25MB. If the attachment is more than 25MB, it will be rejected and the email will not be sent.One of ... than 25MB via Gmail whether it is in the form of work files, college assignments, or anything else.

Why is glucose down via many small reactions rather that all at once via one large reaction?

Description : Why is glucose down via many small reactions rather that all at once via one large reaction?

Last Answer : Need answer

The following statement(s) is/are true concerning host defense mechanisms to intraabdominal infection. a. Bacterial clearance can occur via translymphatic absorption b. Phagocytic activity and bacterial killing can occur via resident phagocytic cells and an influx of PMNs c. A fibrinogen-rich inflammatory exudate is released into the peritoneal cavity, trapping large numbers of bacteria and other particulate matter d. Perforations of a bowel may be walled off but are seldom sealed by the omentum and other mobile viscera

Description : The following statement(s) is/are true concerning host defense mechanisms to intraabdominal infection. a. Bacterial clearance can occur via translymphatic absorption b. Phagocytic activity and bacterial killing can ... may be walled off but are seldom sealed by the omentum and other mobile viscera

Last Answer : Answer: a, b, c The introduction of microorganisms into the normally sterile peritoneal environment invoke several potent specialized host antimicrobial defense mechanisms. Bacterial clearance, ... the contaminated enteric contents walled off, preventing continued soilage of the peritoneal cavity

Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are less likely to become corrupted when being transferred via email. C. He won't need to. All email providers let you send any files you like, regardless of size. D. Email services often have maximum file sizes that prevent you sending files that are too large.

Description : Hamzah needs to email a large file to a classmate. Why might he need to use file compression to do so? A. Email services often only let you send compressed data files. B. Compressed files are ... . D. Email services often have maximum file sizes that prevent you sending files that are too large.

Last Answer : D. Email services often have maximum file sizes that prevent you sending files that are too large.

How do I share large files among a small group of people?

Description : How do I share large files among a small group of people?

Last Answer : A rapidshare or megaupload might work, but the ftp is probably easier.

Which of the following elements shows highest number of alloptropes:

Description : Which of the following elements shows highest number of alloptropes:

Last Answer : Which of the following elements shows highest number of alloptropes: A. N B. P C. S D. O

Which of the following elements shows highest number of alloptropes:

Description : Which of the following elements shows highest number of alloptropes:

Last Answer : Which of the following elements shows highest number of alloptropes: A. N B. P C. S D. O

Do you find the characters on shows with science fiction elements dwell on religion more often than shows with a more realistic genres?

Description : Do you find the characters on shows with science fiction elements dwell on religion more often than shows with a more realistic genres?

Last Answer : answer:I thought in Star Trek TNG, religion was oddly absent. They would mention ancient mythologies of different cultures, but religion seemed to have no part in the lives of any of the characters. Only ... was kind of a religion, but then they just made it a scientific thing in the newer movies.

What Shows all the elements which make up matter?

Description : What Shows all the elements which make up matter?

Last Answer : What is the answer ?

Which one of the following elements shows variable equivalent mass? (1) Zinc (2) Silver (3) Calcium (4) Iron

Description : Which one of the following elements shows variable equivalent mass? (1) Zinc (2) Silver (3) Calcium (4) Iron

Last Answer : (4) Iron

The following shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e.

Description : The following shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e.

Last Answer : a) Select the letter which represents a metal. b) Select the letter which represents a noble gas. a) d b) c

A ........ is an initial document that shows where all text and graphic elements will be placed A. Comp B. DTP C. On screen D. Online

Description : A ........ is an initial document that shows where all text and graphic elements will be placed A. Comp B. DTP C. On screen D. Online

Last Answer : C. On screen

A. We are usually inclined to look upon bad temper as a very harmless weakness, B. _________________________________ C. And yet all religious texts condemn it as one of the most destructive elements in human nature. (1) This shows that we lack judgement. (2) Often work pressure creates bad temper. (3) Bad temper harms human relationship. (4) We speak of it as a mere infirmity of nature, perhaps a family failing

Description : A. We are usually inclined to look upon bad temper as a very harmless weakness, B. _________________________________ C. And yet all religious texts condemn it as one of the most destructive elements in human ... relationship. (4) We speak of it as a mere infirmity of nature, perhaps a family failing

Last Answer : (4) We speak of it as a mere infirmity of nature, perhaps a family failing.

Lithium and beryllium, shows similarity with which elements .

Description : Lithium and beryllium, shows similarity with which elements . 

Last Answer : Lithium shows similarities to magnesium and beryllium to aluminium in many of their properties. This type of diagonal similarity is commonly referred to as diagonal relationship in the periodic table. 

What element of Dante and inferno shows the reader that he wants to expose corruption in the church?

Description : What element of Dante and inferno shows the reader that he wants to expose corruption in the church?

Last Answer : Feel Free to Answer

The smallest particle of an element or a compound; which shows all the properties of that substance is known as?

Description : The smallest particle of an element or a compound; which shows all the properties of that substance is known as?

Last Answer : molecule

The element which shows highest elec- tron affinity?

Description : The element which shows highest elec- tron affinity?

Last Answer : Chlorine (348)

The element shows antiferromagnetic property?

Description : The element shows antiferromagnetic property?

Last Answer : Chromium

The element shows highest thermal con- ductivity?

Description : The element shows highest thermal con- ductivity?

Last Answer : Helium

with which element Beryllium shows diagonal relation ship?

Description : with which element Beryllium shows diagonal relation ship?

Last Answer : Ans : Al

In second gp which element shows Anomalous Behaviour ?

Description : In second gp which element shows Anomalous Behaviour ?

Last Answer : Ans Be

A constellation diagram shows us the __________ of a signal element, particularly when we areusing twocarriers (one in-phase and one quadrature). A) amplitudeand phase B) amplitudeand frequency C) frequencyand phase D) none of the above

Description : A constellation diagram shows us the __________ of a signal element, particularly when we areusing twocarriers (one in-phase and one quadrature). A) amplitudeand phase B) amplitudeand frequency C) frequencyand phase D) none of the above

Last Answer : amplitudeand phase

Which of the following statements best describes a lead compound? a) A compound that contains the element lead b) A compound from the research laboratory that is chosen to go forward for preclinical and clinical trials. c) A molecule that shows some activity or property of interest and serves as the starting point for the development of a drug. d) The first compound of a structural class of compounds to reach the market.

Description : Which of the following statements best describes a lead compound? a) A compound that contains the element lead b) A compound from the research laboratory that is chosen to go forward for preclinical and ... of a drug. d) The first compound of a structural class of compounds to reach the market.

Last Answer : c) A molecule that shows some activity or property of interest and serves as the starting point for the development of a drug.