3275 + Interview Questions in Chemistry Page 28 InterviewSolution

1351.	The poster given in the above question gives out a message on:
Answer» The poster given in the above question gives out a message on:

Discussion

1352.	Which layer of soil is carried away with the flowing rain water?
Answer» Which layer of soil is carried away with the flowing rain water?

Discussion

1353.	Fill in the blanks from the given options. Single large buildings which can accommodate many different residents or families are known as _______. (apartments/bungalows) Water in our homes is purified by a device called _______. (water boiler/water purifier) 97% of the water on the Earth is _______. (sweet/salty) Walking on the railway tracks to cross _______ is highly dangerous. (bridges/platforms) There are entry and exit ______ on both sides of every compartment for the passengers to enter and exit the train. (windows/doors) _______ are the sleeping arrangements made in a sleeper coach of a train. (berths/tracks) ________ is the person responsible for all the official activities in a railway station. (station master/loco pilot) Babies spend most of their time with their ______. (brother/mother) Karnam Malleswari has won _____ gold medals in international events. (32/29) ________ is the only Indian woman to win six gold medals in world boxing championships. (Mary Kom/Mithali Raj)
Answer» Fill in the blanks from the given options. Single large buildings which can accommodate many different residents or families are known as _______. (apartments/bungalows) Water in our homes is purified by a device called _______. (water boiler/water purifier) 97% of the water on the Earth is _______. (sweet/salty) Walking on the railway tracks to cross _______ is highly dangerous. (bridges/platforms) There are entry and exit ______ on both sides of every compartment for the passengers to enter and exit the train. (windows/doors) _______ are the sleeping arrangements made in a sleeper coach of a train. (berths/tracks) ________ is the person responsible for all the official activities in a railway station. (station master/loco pilot) Babies spend most of their time with their ______. (brother/mother) Karnam Malleswari has won _____ gold medals in international events. (32/29) ________ is the only Indian woman to win six gold medals in world boxing championships. (Mary Kom/Mithali Raj)

Discussion

1354.	Which gas in air is essential for respiration?
Answer» Which gas in air is essential for respiration?

Discussion

1355.	Which of the following is the correct order of energy changes in the above circuit?
Answer» Which of the following is the correct order of energy changes in the above circuit?

1355.

Which of the following is the correct order of energy changes in the above circuit?

Answer»

Which of the following is the correct order of energy changes in the above circuit?

Discussion

1356.	A Compound contains 20% sulphur.The Molecular weight of the compound is?
Answer» A Compound contains 20% sulphur.The Molecular weight of the compound is?

Discussion

1357.	'पिछले सुख की स्मृति आँखों में क्षण भर एक चमक है लाती' में किसान के किन पिछले सुखों की ओर संकेत किया गया है?
Answer» 'पिछले सुख की स्मृति आँखों में क्षण भर एक चमक है लाती' में किसान के किन पिछले सुखों की ओर संकेत किया गया है?

Discussion

1358.	21. when air is blown to balloon its pressure and volume both increase . this violates : 1. boyles law 2. charles law 3. gas law 4. none of these
Answer» 21. when air is blown to balloon its pressure and volume both increase . this violates : 1. boyles law 2. charles law 3. gas law 4. none of these

Discussion

1359.	Define the following terms:(i) Precipitation(ii) transpiration (iii) Clouds
Answer» Define the following terms: (i) Precipitation (ii) transpiration (iii) Clouds

1359.

Define the following terms:(i) Precipitation(ii) transpiration (iii) Clouds

Answer»

Define the following terms:

(i) Precipitation

(ii) transpiration

(iii) Clouds

Discussion

1360.	How to measure readings from Vernier caliper
Answer» How to measure readings from Vernier caliper

Discussion

1361.	Ozone layer has a radiative forcing
Answer» Ozone layer has a radiative forcing

Discussion

1362.	Q: Difference between molecule, atoms and element.
Answer» Q: Difference between molecule, atoms and element.

Discussion

1363.	Define knitting and dyeing.
Answer» Define knitting and dyeing.

Discussion

1364.	5. Conventional source of energy
Answer» 5. Conventional source of energy

Discussion

1365.

Choose two friends in your class who are very different from each other. Use the clues in the box to describe their nature. You may also add your own words to describe them. naughty lively sharing careless studious quiet friendly helpful regular cheerful

Answer» Choose two friends in your class who are very different from each other. Use the clues in the box to describe their nature. You may also add your own words to describe them.

naughty	lively	sharing	careless	studious
quiet	friendly	helpful	regular	cheerful

Discussion

1366.	Pick the mixture which has only liquid constituents.
Answer» Pick the mixture which has only liquid constituents.

Discussion

1367.	Write the possible outcome of mixing vegetable oil, rice powder and water in a glass.
Answer» Write the possible outcome of mixing vegetable oil, rice powder and water in a glass.

Discussion

1368.	If two substances are brought in contact, it will result in(a) a physical change only.(b) a chemical change only.(c) either a physical change or a chemical change, depending on the conditions.(d) a chemical change if they are heated together otherwise, a physical change.
Answer» If two substances are brought in contact, it will result in (a) a physical change only. (b) a chemical change only. (c) either a physical change or a chemical change, depending on the conditions. (d) a chemical change if they are heated together otherwise, a physical change.

Discussion

1369.	Identify yarn from the given images.
Answer» Identify yarn from the given images.

Discussion

1370.	The distillate is a liquid that
Answer» The distillate is a liquid that

Discussion

1371.	What is black matter?
Answer» What is black matter?

Discussion

1372.	Explain structure of SO2 using MOT and VBT
Answer» Explain structure of SO2 using MOT and VBT

Discussion

1373.	Question 3.Which of the following changes are Reversible and Irreversible?(a) Blowing of a balloon(b) Folding a paper to make a toy aeroplane(c) Rolling a ball of dough to make roti(d) Baking cake in an oven(e) Drying a wet cloth(f) Making biogas from cow dung(g) Burning of a candle
Answer» Question 3. Which of the following changes are Reversible and Irreversible? (a) Blowing of a balloon (b) Folding a paper to make a toy aeroplane (c) Rolling a ball of dough to make roti (d) Baking cake in an oven (e) Drying a wet cloth (f) Making biogas from cow dung (g) Burning of a candle

1373.

Question 3.Which of the following changes are Reversible and Irreversible?(a) Blowing of a balloon(b) Folding a paper to make a toy aeroplane(c) Rolling a ball of dough to make roti(d) Baking cake in an oven(e) Drying a wet cloth(f) Making biogas from cow dung(g) Burning of a candle

Answer»

Question 3.

Which of the following changes are Reversible and Irreversible?

(a) Blowing of a balloon

(b) Folding a paper to make a toy aeroplane

(c) Rolling a ball of dough to make roti

(d) Baking cake in an oven

(e) Drying a wet cloth

(f) Making biogas from cow dung

(g) Burning of a candle

Discussion

1374.	Melting of ice-cream is a
Answer» Melting of ice-cream is a

Discussion

1375.	What will happen when the products get to collide as the temperature increases?
Answer» What will happen when the products get to collide as the temperature increases?

Discussion

1376.	Question 4Identify the process involved in the given picture and explain it?
Answer» Question 4 Identify the process involved in the given picture and explain it?

1376.

Question 4Identify the process involved in the given picture and explain it?

Answer»

Question 4

Identify the process involved in the given picture and explain it?

Discussion

1377.	Why is it said that – ?(a) The ozone layer is a protective shell of the earth.(b) Water is life.(c) Seawater is useful even though it is not potable.
Answer» Why is it said that – ? (a) The ozone layer is a protective shell of the earth. (b) Water is life. (c) Seawater is useful even though it is not potable.

Discussion

1378.	Name the natural fibre used in the production of following items.
Answer» Name the natural fibre used in the production of following items.

Discussion

1379.	what is the n factor?
Answer» what is the n factor?

Discussion

1380.	Hydrazine, a component of rocket fuel, undergoes combustion to yield N_{2 }and H_2O . N_2H_4 +O_2 → N_2 + 2 H_2O What is the enthalpy combution of N_2H_4 (kJ/mole) Given Reaction △ H/kJ 2NH_3 + 3N_2O→4N_2 + 3H_2O -1011kJ N_2O + 3H_2→ N_2H_4 + H_2O -317kJ 4NH_3 + O_2→2N_2H_4 + 2H_2O -286 kJ H_2 + 1/2 O_2→ H_2O -285 kJ (a) -620.5 (b)-622.75 (c) -1167.5 (d) 622.7
Answer» Hydrazine, a component of rocket fuel, undergoes combustion to yield N_{2 }and H_2O . N_2H_4 +O_2 → N_2 + 2 H_2O What is the enthalpy combution of N_2H_4 (kJ/mole) Given Reaction △ H/kJ 2NH_3 + 3N_2O→4N_2 + 3H_2O -1011kJ N_2O + 3H_2→ N_2H_4 + H_2O -317kJ 4NH_3 + O_2→2N_2H_4 + 2H_2O -286 kJ H_2 + 1/2 O_2→ H_2O -285 kJ (a) -620.5 (b)-622.75 (c) -1167.5 (d) 622.7

Discussion

1381.	Water exists in which of the following form(s):
Answer» Water exists in which of the following form(s):

Discussion

1382.	What are the different kinds of books in this bookshop or in any other bookshop you have seen? Tell the class.
Answer» What are the different kinds of books in this bookshop or in any other bookshop you have seen? Tell the class.

Discussion

1383.	Which of the following helps life sustain in water?
Answer» Which of the following helps life sustain in water?

Discussion

1384.	Identify yarn from the given images.
Answer» Identify yarn from the given images.

Discussion

1385.	A mixture of iron dust and sulphur powder can be separated by:
Answer» A mixture of iron dust and sulphur powder can be separated by:

Discussion

1386.	What is the significance of amalgamation and it's neccecity
Answer» What is the significance of amalgamation and it's neccecity

Discussion

1387.	What are physical and chemical changes ? What is the difference between them?
Answer» What are physical and chemical changes ? What is the difference between them?

Discussion

1388.	Are all physical changes reversible?
Answer» Are all physical changes reversible?

Discussion

1389.	Is ZnSO4 an aqueous solution or a liquid?
Answer» Is ZnSO4 an aqueous solution or a liquid?

Discussion

1390.	Water vapours enter the atmosphere due to
Answer» Water vapours enter the atmosphere due to

Discussion

1391.	Differentiate between Natural and man-made change.
Answer» Differentiate between Natural and man-made change.

Discussion

1392.	Why should paper be saved? Prepare a list of ways by which you can still save paper.[5 MARKS]
Answer» Why should paper be saved? Prepare a list of ways by which you can still save paper. [5 MARKS]

Discussion

1393.	Question 7 Neutralisation reaction is a (a) physical and reversible change. (b) physical change that cannot be reversed. (c) chemical and reversible change. (d) chemical change that cannot be reversed.
Answer» Question 7 Neutralisation reaction is a (a) physical and reversible change. (b) physical change that cannot be reversed. (c) chemical and reversible change. (d) chemical change that cannot be reversed.

1393.

Question 7 Neutralisation reaction is a (a) physical and reversible change. (b) physical change that cannot be reversed. (c) chemical and reversible change. (d) chemical change that cannot be reversed.

Answer»

Question 7

Neutralisation reaction is a
(a) physical and reversible change.
(b) physical change that cannot be reversed.
(c) chemical and reversible change.
(d) chemical change that cannot be reversed.

Discussion

1394.	Name the plant where the living organism exists earth
Answer» Name the plant where the living organism exists earth

Discussion

1395.	Question 1 An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ? (a) Mustard oil (b) Soft drink (c) Coconut oil (d) Kerosene
Answer» Question 1 An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ? (a) Mustard oil (b) Soft drink (c) Coconut oil (d) Kerosene

1395.

Question 1 An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ? (a) Mustard oil (b) Soft drink (c) Coconut oil (d) Kerosene

Answer»

Question 1

An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ?

(a) Mustard oil

(b) Soft drink

(c) Coconut oil

(d) Kerosene

Discussion

1396.	Name the method of separation you can use to get salt from water containing dissolved salt.
Answer» Name the method of separation you can use to get salt from water containing dissolved salt.

Discussion

1397.	A coin in a glass beaker appears to rise as the beaker is slowly filled with water. Why?
Answer» A coin in a glass beaker appears to rise as the beaker is slowly filled with water. Why?

Discussion

1398.	There is a fire extinguishing hose pipe which disposes water at the speed of 10m/s . A very high building is on fire.The safe dis†an ce from building on ground is 5m.How high can this water strike the building?(g=10m/s)(a)3.75(b)2.75(c)4.75()5.75
Answer» There is a fire extinguishing hose pipe which disposes water at the speed of 10m/s . A very high building is on fire.The safe dis†an ce from building on ground is 5m.How high can this water strike the building?(g=10m/s)(a)3.75(b)2.75(c)4.75()5.75

Discussion

1399.	What happens if a strong wind begins to blow after dark clouds have gathered overhead?
Answer» What happens if a strong wind begins to blow after dark clouds have gathered overhead?

Discussion

1400.

Question 17 Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.

Answer»

Question 17

Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.

Discussion

Explore topic-wise InterviewSolutions in .

The poster given in the above question gives out a message on:

Which layer of soil is carried away with the flowing rain water?

Which gas in air is essential for respiration?

Which of the following is the correct order of energy changes in the above circuit?

A Compound contains 20% sulphur.The Molecular weight of the compound is?

'पिछले सुख की स्मृति आँखों में क्षण भर एक चमक है लाती' में किसान के किन पिछले सुखों की ओर संकेत किया गया है?

21. when air is blown to balloon its pressure and volume both increase . this violates : 1. boyles law 2. charles law 3. gas law 4. none of these

Define the following terms:(i) Precipitation(ii) transpiration (iii) Clouds

How to measure readings from Vernier caliper

Ozone layer has a radiative forcing

Q: Difference between molecule, atoms and element.

Define knitting and dyeing.

5. Conventional source of energy

Choose two friends in your class who are very different from each other. Use the clues in the box to describe their nature. You may also add your own words to describe them. naughty lively sharing careless studious quiet friendly helpful regular cheerful

Pick the mixture which has only liquid constituents.

Write the possible outcome of mixing vegetable oil, rice powder and water in a glass.

If two substances are brought in contact, it will result in(a) a physical change only.(b) a chemical change only.(c) either a physical change or a chemical change, depending on the conditions.(d) a chemical change if they are heated together otherwise, a physical change.

Identify yarn from the given images.

The distillate is a liquid that

What is black matter?

Explain structure of SO2 using MOT and VBT

Question 3.Which of the following changes are Reversible and Irreversible?(a) Blowing of a balloon(b) Folding a paper to make a toy aeroplane(c) Rolling a ball of dough to make roti(d) Baking cake in an oven(e) Drying a wet cloth(f) Making biogas from cow dung(g) Burning of a candle

Melting of ice-cream is a

What will happen when the products get to collide as the temperature increases?

Question 4Identify the process involved in the given picture and explain it?

Why is it said that – ?(a) The ozone layer is a protective shell of the earth.(b) Water is life.(c) Seawater is useful even though it is not potable.

Name the natural fibre used in the production of following items.

what is the n factor?

Water exists in which of the following form(s):

What are the different kinds of books in this bookshop or in any other bookshop you have seen? Tell the class.

Which of the following helps life sustain in water?

Identify yarn from the given images.

A mixture of iron dust and sulphur powder can be separated by:

What is the significance of amalgamation and it's neccecity

What are physical and chemical changes ? What is the difference between them?

Are all physical changes reversible?

Is ZnSO4 an aqueous solution or a liquid?

Water vapours enter the atmosphere due to

Differentiate between Natural and man-made change.

Why should paper be saved? Prepare a list of ways by which you can still save paper.[5 MARKS]

Question 7 Neutralisation reaction is a (a) physical and reversible change. (b) physical change that cannot be reversed. (c) chemical and reversible change. (d) chemical change that cannot be reversed.

Name the plant where the living organism exists earth ​​​​​​

Question 1 An iron nail is kept in each of the following liquids. In which case would it lose its shine and appear dull ? (a) Mustard oil (b) Soft drink (c) Coconut oil (d) Kerosene

Name the method of separation you can use to get salt from water containing dissolved salt.

A coin in a glass beaker appears to rise as the beaker is slowly filled with water. Why?

There is a fire extinguishing hose pipe which disposes water at the speed of 10m/s . A very high building is on fire.The safe dis†an ce from building on ground is 5m.How high can this water strike the building?(g=10m/s)(a)3.75(b)2.75(c)4.75()5.75

What happens if a strong wind begins to blow after dark clouds have gathered overhead?

Question 17 Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.

Name the plant where the living organism exists earth