What is the colour imparted to the flame by Ca,Sr and Ba?

What is the colour imparted to the flame by Ca,Sr and Ba?
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Calcium, strontium and barium impart characteristic brick red, crimson and apple green colours respectively to the flame. In flame the electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light. 
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How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Description : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K " " (iv) Ba` `(v) Sr " " (vi) Mg " "

Last Answer : How many of following metals impart a characteristic colour to the Bunsen flame ? `(i) Na " " (ii) Li " " (iii) K ... ix) `Be " " (x )Ca " " (x i)Cu`

Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Description : Colour imparted to the Bunsen flame by strontium salt is - (1) bluish green (2) apple-green (3) brick red (4) crimson red

Last Answer : (4) crimson red Explanation: A flame test is performed by introducing a sample into the blue flame of a bunsen burner and noting any change in the colour of the flame. The tests can be used ... metallic elements in salts. With strontium salt, the colour of Bunsen flame ranges from crimson to red.

What is the colour imparted to the flame by Calcium,Strantium and Barium?

Description : What is the colour imparted to the flame by Calcium,Strantium and Barium?

Last Answer : Ans Calcium, strontium and barium impart characteristic brick red, crimson and apple green colours respectively to the flame. In flame the electrons are excited to higher energy levels and when they drop back to the ground state, energy is emitted in the form of visible light.

Give reason for the colour imparted to the flame by alkali metals

Description : Give reason for the colour imparted to the flame by alkali metals 

Last Answer : The alkali metals and their salts impart characteristic colour to an oxidizing flame. This is because the heat from the flame excites the outermost orbital electron to a higher energy level. When the ... electron comes back to the ground state, there is emission of radiation in the visible region. 

Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red

Description : Colour imparted to the Bunsen flame by strontium salt is (1) bluish green (2) apple-green (3) brick red (4) crimson red

Last Answer : crimson red

Blue colour is imparted to glass by the addition of (A) FeSO4 (B) PbO (C) CaO (D) NaOH

Description : Blue colour is imparted to glass by the addition of (A) FeSO4 (B) PbO (C) CaO (D) NaOH

Last Answer : (C) CaO

ABCD is a trapezium in which AB || DC and AD = BC. If P, Q, R and S be respectively the mid-points of BA, BD, CD and CA, then PQRS is a -Maths 9th

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Last Answer : Here is your First of all we will draw a quadrilateral ABCD with AD = BC and join AC, BD, P,Q,R,S are the mid points of AB, AC, CD and BD respectively. In the triangle ABC, P and Q are mid points of AB and AC respectively. All sides are equal so PQRS is a Rhombus.

In the above figure ( not to scale ) the sides BA,BC and CA of` Delta ABC` are produced to D,F, and E respectively such that `/_ ACF= 120^(@)` and `/_

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Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Description : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

Last Answer : Number of metals among following which are obatained by electromentallurgy in molten state are Li, Ba, Na,Al, Fe, Cu, Pb, Sn, Ag, Zn, Ca, Mg.

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

Why Be and Mg do not impart colour to the flame ?

Description : Why Be and Mg do not impart colour to the flame ?

Last Answer : Ans : The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any colour to the flame.

Why Be and Mg do not impart colour to the flame ?

Description : Why Be and Mg do not impart colour to the flame ? 

Last Answer : The electrons in beryllium and magnesium are too strongly bound to get excited by flame. Hence, these elements do not impart any colour to the flame. 

A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

Description : A colorless salt gives violet colour to Bunsen flame and also turns moisture litmus paper blue. It is :

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Which metal gives violet colour in oxidising flame when heated with borax ?

Description : Which metal gives violet colour in oxidising flame when heated with borax ?

Last Answer : Which metal gives violet colour in oxidising flame when heated with borax ? A. Fe B. Pb C. Co D. Mn

Alkali metal salt "X" gives a pale violet colour in flame test "X" is :

Description : Alkali metal salt "X" gives a pale violet colour in flame test "X" is :

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Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be :

Description : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be :

Last Answer : Metal (M) shows crimson red colour in flame test and its halide is deliquescent then metal (M) could be : A. Li B. Mg C. Ca D. Ba

Do all metals produce colour in a flame?

Description : Do all metals produce colour in a flame?

Last Answer : Need answer

When sodium burns; what is the colour of the flame?

Description : When sodium burns; what is the colour of the flame?

Last Answer : Golden yellow

Which metal salt gives lilac colour to the flame?

Description : Which metal salt gives lilac colour to the flame?

Last Answer : Potassium

Give reason: Glass objects when held to flame acquires golden yellow colour.

Description : Give reason: Glass objects when held to flame acquires golden yellow colour.

Last Answer : The sodium content of sodium silicate present in glass makes the flame to acquire golden yellow colour to the flame.

The consumer movement in India has imparted which values to the consumers ? -SST 10th

Description : The consumer movement in India has imparted which values to the consumers ? -SST 10th

Last Answer : (i) Awareness of one’s rights. (ii) Social Ethics of mortality. (iii) Social ethics of morality.

Highlight important features of education imparted in Nazi schools. -History 9th

Description : Highlight important features of education imparted in Nazi schools. -History 9th

Last Answer : Features of the education imparted in Nazi schools : Some of the deeds of nazis for altering the school study are:- they removed all old course books and printed books describing nazi ... pray Hitler.In the schools the undesirables were thrown out of the school.Racial science was established.

Highlight important features of education imparted in Nazi schools. -History 9th

Description : Highlight important features of education imparted in Nazi schools. -History 9th

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Who first imparted a mass character to the Indian National Congress? -Do You Know?

Description : Who first imparted a mass character to the Indian National Congress? -Do You Know?

Last Answer : answer:

A lighter object A and a heavier object B are initially at rest. Both are imparted the same linear momentum.

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Foundation training to the newly recruited IAS (Probationers) is imparted by: (1) Indian Institute of Public Administration (2) Administrative Staff College of India (3) L.B.S. National Academy of Administration (4) Centre for Advanced Studies

Description : Foundation training to the newly recruited IAS (Probationers) is imparted by: (1) Indian Institute of Public Administration (2) Administrative Staff College of India (3) L.B.S. National Academy of Administration (4) Centre for Advanced Studies

Last Answer : (3) L.B.S. National Academy of Administration Explanation: L.B.S. National Academy of Administration's main purpose is to train civil service officers of Indian Administrative Service, Indian ... Forest Service; and also for Group-A Central Services such as Indian Foreign Service among others.

When a low input voltage is imparted to a device which then delivers a high output voltage, the device is known as a _____________. A. primary transformer B. secondary transformer C. stepdown transformer D. stepup transformer

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Who first imparted a mass character to the Indian National Congress?

Description : Who first imparted a mass character to the Indian National Congress?

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Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of (A) Electromagnets (B) Cams or eccentric shafts (C) Unbalanced flywheels (D) Either (A), (B) or (C)

Description : Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of (A) Electromagnets (B) Cams or eccentric shafts (C) Unbalanced flywheels (D) Either (A), (B) or (C)

Last Answer : (D) Either (A), (B) or (C)

Pick out the wrong statement. (A) 'Solvates' are chemical compounds formed by solute with their solvents. When water is the solvent, then it is called a 'hydrate' (B) In heat exchanger calculations (Δt) weighted is used in place of Δt, when it involves more than one sequence of heating or cooling i.e., desuperheating & condensation or condensation & sub-cooling (C) Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted (D) In case of short tube vertical evaporators, area of central downtake is about 50 to 100% of the total tube cross-sectional area

Description : Pick out the wrong statement. (A) 'Solvates' are chemical compounds formed by solute with their solvents. When water is the solvent, then it is called a 'hydrate' (B) In heat exchanger ... vertical evaporators, area of central downtake is about 50 to 100% of the total tube cross-sectional area

Last Answer : (C) Heat transfer co-efficient during nucleate boiling is not influenced by the agitation imparted

Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide (C) Ordinary glass is represented chemically by Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

Description : Pick out the wrong statement. (A) Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate (B) Glass is decolorized during its manufacture by ... Na2O . CaO . 6SiO2 (D) Red color is imparted to glass by addition of arsenic oxide

Last Answer : (D) Red color is imparted to glass by addition of arsenic oxide

In case of a, centrifugal pump, the ratio h1/h2is termed as the __________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller). (A) Mechanical (B) Overall (C) Volumetric (D) Impeller

Description : In case of a, centrifugal pump, the ratio h1/h2is termed as the __________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller). (A) Mechanical (B) Overall (C) Volumetric (D) Impeller

Last Answer : A) Mechanical

Soil acceleration increases draft because of a) Increased normal load on soil working surface b) Increased frictional resistance c) Kinetic energy imparted to the soil d) All of the above

Description : Soil acceleration increases draft because of a) Increased normal load on soil working surface b) Increased frictional resistance c) Kinetic energy imparted to the soil d) All of the above

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Foundation training to the newly recruited IAS (Probationers) is imparted by : (A) Indian Institute of Public Administration (B) Administrative Staff College of India (C) L.B.S. National Academy of Administration (D) Centre for Advanced Studies

Description : Foundation training to the newly recruited IAS (Probationers) is imparted by : (A) Indian Institute of Public Administration (B) Administrative Staff College of India (C) L.B.S. National Academy of Administration (D) Centre for Advanced Studies

Last Answer : Answer: C  On April 15, 1958 the then Home Minister announced in the Lok Sabha a pr oposal to set up a National Academy of Administration, where training would be given to all the recruits ... Service, India nP olice Service and the Indian Forest Service; and all Group-A Central Services. 

What is the element represented by the symbol Sr?

Description : What is the element represented by the symbol Sr? 

Last Answer : ANSWER: STRONTIUM

Red and purple colour of maize (Zea Mays) is due to deficiency of (A) Ca (B) N (C)F (D) P

Description : Red and purple colour of maize (Zea Mays) is due to deficiency of (A) Ca (B) N (C)F (D) P

Last Answer : (D) P

The wire of flash bulbs is made up of – (1) Mg (2) Ba (3) Cu (4) Ag

Description : The wire of flash bulbs is made up of – (1) Mg (2) Ba (3) Cu (4) Ag

Last Answer : (1) Mg Explanation: The wire of flash bulbs is made up of magnesium. Magnesium filaments are contained in bulbs filled with oxygen gas, and electrically ignited by a contact in the camera shutter.

Of the following elements which has the largest atomic radius? w) Ba x) F y) C z) Be

Description : Of the following elements which has the largest atomic radius? w) Ba x) F y) C z) Be

Last Answer : ANSWER: W -- Ba

The wire of flash bulbs is made up of (1) Mg (2) Ba (3) Cu (4) Ag

Description : The wire of flash bulbs is made up of (1) Mg (2) Ba (3) Cu (4) Ag

Last Answer : Mg

Can I get out of having to provide an SR-22 (please read details)

Description : Can I get out of having to provide an SR-22 (please read details)

Last Answer : I would say you need a new Insurance agent. Google says you need an insurance company that complies with the SR-22 requirements. Not sure if that limits the pool of companies or not but I would ... cost you . Whoever you do call just don't sound overly desperate of they may quote you accordingly.

At what age does a Sr. become a Sr? Is it when you name the Jr.?

Description : At what age does a Sr. become a Sr? Is it when you name the Jr.?

Last Answer : answer:Yes, a Sr becomes a Sr only after a Jr is born. I would say that it is just an ego boost, but people can name their kids whatever they want. I think it's important to let your kid have his ... girl is married, meaning she would no longer be a Jr. Men pass on the family name; women do not.

Gifts for a man about to become eligible for the sr. citizen discount at the movie theater?

Description : Gifts for a man about to become eligible for the sr. citizen discount at the movie theater?

Last Answer : answer:My husband seems to enjoy various computer enhancements, such as added memory. A musical instrument for under $200, what, a kazoo?

Where can I find a list or timeline of Dale Earnhadt Sr career accomplishments?

Description : Where can I find a list or timeline of Dale Earnhadt Sr career accomplishments?

Last Answer : The Wikipedia article on Dale Earnhardt has a summary of his achievements.

If you are arrested for drunk driving but not convicted, do you still need SR-22?

Description : If you are arrested for drunk driving but not convicted, do you still need SR-22?

Last Answer : He should call the DMV and find out if it’s on his record. He can even probably run a drivers record check on himself. Usually arrests can’t count against things because we have this “innocent until proven guilty” thing here in the USA

Filters: What does tiffens "SR" stand for?

Description : Filters: What does tiffens "SR" stand for?

Last Answer : The “SR” stands for “Self-Rotating”. In other words, the mount allows you to turn the filter to adjust the polarization angle.

ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA (see Fig 8.29). AC is a diagonal. Show that: (i) SR || AC and SR = 1/2 AC (ii) PQ = SR (iii) PQRS is a parallelogram. -Maths 9th

Description : ABCD is a quadrilateral in which P, Q, R and S are mid-points of the sides AB, BC, CD and DA (see Fig 8.29). AC is a diagonal. Show that: (i) SR || AC and SR = 1/2 AC (ii) PQ = SR (iii) PQRS is a parallelogram. -Maths 9th

Last Answer : . Solution: (i) In ΔDAC, R is the mid point of DC and S is the mid point of DA. Thus by mid point theorem, SR || AC and SR = ½ AC (ii) In ΔBAC, P is the mid point of AB and Q is the mid point of BC. ... ----- from question (ii) ⇒ SR || PQ - from (i) and (ii) also, PQ = SR , PQRS is a parallelogram.

In the figure shown here, QS = SR, QU = SU, PW = WS and ST || RV. What is the value of -Maths 9th

Description : In the figure shown here, QS = SR, QU = SU, PW = WS and ST || RV. What is the value of -Maths 9th

Last Answer : answer:

What is the atomic number of Sr ?

Description : What is the atomic number of Sr ?

Last Answer : The atomic number of Sr is 38

What is SR flip-flop ?

Description : What is SR flip-flop ?

Last Answer : SR Flip-flop is the simplest flip flop. The full form of SR is - Set Reset . In SR flip-flop, setting the output state to 1 or HIGH is called SET and 0 or LOW is called RESET . SR flip- ... formed by connecting two NAND gates or NOR gates and connecting the input of one to the output of the other .

I want to work in SR position of the company

Last Answer : It would be helpful to mention what kind of company you want to work for. The job of a sales representative as a job is not bad. But you have to walk a lot of places every day. If the walker ... is new, it will be very difficult for you. Because it is very difficult to sell goods of new company.