3275 + Interview Questions in Chemistry Page 16 InterviewSolution

751.	For any liquid, vapor pressure increases with increase in
Answer» For any liquid, vapor pressure increases with increase in

Discussion

752.	When the air is cooled which gas changes in liquid first.
Answer» When the air is cooled which gas changes in liquid first.

Discussion

753.	Question 12On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.
Answer» Question 12 On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.

Discussion

754.	why solubility of co2>o2>N2?
Answer» why solubility of co2>o2>N2?

Discussion

755.	What can be the maximum value of n- factor ??
Answer» What can be the maximum value of n- factor ??

Discussion

756.	A region of a lake is turned into a dead zone. Identify the correct reason for this.
Answer» A region of a lake is turned into a dead zone. Identify the correct reason for this.

Discussion

757.	What is the role of the ozone layer? When is world ozone day celebrated?
Answer» What is the role of the ozone layer? When is world ozone day celebrated?

Discussion

758.	Which of these is a mixture?a. Common saltb. Oxygenc. Tap waterd. Iron sulphide
Answer» Which of these is a mixture? a. Common salt b. Oxygen c. Tap water d. Iron sulphide

Discussion

759.	Relative density of an oil is 0.8. Find the absolute density of the oil in SI unit.
Answer» Relative density of an oil is $0.8$ . Find the absolute density of the oil in SI unit.

Discussion

760.	Read the paragraph and note down the various types of changes it mentions.It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
Answer» Read the paragraph and note down the various types of changes it mentions. It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.

Discussion

761.	Write any three experiances where condensation of water vapour is observed.
Answer» Write any three experiances where condensation of water vapour is observed.

Discussion

762.	The words in the sentences are jumbled. Write them in order. One is done for you.(i) alone was not Robinson an island onRobinson was not alone on an island.(ii) was island the inhabited____________________________________________________(iii) footprint to someone this belonged_____________________________________________________(iv) I around me looked_____________________________________________________(v) I went the towards footprint large_____________________________________________________(vi) was afraid I now_____________________________________________________
Answer» The words in the sentences are jumbled. Write them in order. One is done for you. (i) alone was not Robinson an island on Robinson was not alone on an island. (ii) was island the inhabited ____________________________________________________ (iii) footprint to someone this belonged _____________________________________________________ (iv) I around me looked _____________________________________________________ (v) I went the towards footprint large _____________________________________________________ (vi) was afraid I now _____________________________________________________

762.

The words in the sentences are jumbled. Write them in order. One is done for you.(i) alone was not Robinson an island onRobinson was not alone on an island.(ii) was island the inhabited__________________________(iii) footprint to someone this belonged_(iv) I around me looked_(v) I went the towards footprint large_(vi) was afraid I now___________________________

Answer»

The words in the sentences are jumbled. Write them in order. One is done for you.

(i) alone was not Robinson an island on

Robinson was not alone on an island.

(ii) was island the inhabited

____________________________________________________

(iii) footprint to someone this belonged

_____________________________________________________

(iv) I around me looked

_____________________________________________________

(v) I went the towards footprint large

_____________________________________________________

(vi) was afraid I now

_____________________________________________________

Discussion

763.	The pictures show different types of same substance. Identify the substance.
Answer» The pictures show different types of same substance. Identify the substance.

Discussion

764.	What is absolute zero temperature?
Answer» What is absolute zero temperature?

Discussion

765.	What is super position principal?
Answer» What is super position principal?

Discussion

766.	Mettez le dialogue en ordre.1. Et vous madame?2. Qu'est - ce que vous voulez monsieur?3. Donnez - moi une limonade et du jus d'orange pour la femme.4. Je veux un sandwich au jambon et une salade verte.5. Ah ! Je veux du pain au chocolat.6. Et les boissons?
Answer» Mettez le dialogue en ordre. 1. Et vous madame? 2. Qu'est - ce que vous voulez monsieur? 3. Donnez - moi une limonade et du jus d'orange pour la femme. 4. Je veux un sandwich au jambon et une salade verte. 5. Ah ! Je veux du pain au chocolat. 6. Et les boissons?

Discussion

767.	Question 5 Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations. (i) Bubbles of air came out from the bottle. (ii) Some water entered the bottle. (iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water (iv) No bubbles formed, only water entered the bottle. Which observations is /are correct? a) (i) and (ii) only b) (iv) only c) (iii) and (iv) d) (i) only
Answer» Question 5 Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations. (i) Bubbles of air came out from the bottle. (ii) Some water entered the bottle. (iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water (iv) No bubbles formed, only water entered the bottle. Which observations is /are correct? a) (i) and (ii) only b) (iv) only c) (iii) and (iv) d) (i) only

767.

Question 5 Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations. (i) Bubbles of air came out from the bottle. (ii) Some water entered the bottle. (iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water (iv) No bubbles formed, only water entered the bottle. Which observations is /are correct? a) (i) and (ii) only b) (iv) only c) (iii) and (iv) d) (i) only

Answer»

Question 5

Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.

(i) Bubbles of air came out from the bottle.
(ii) Some water entered the bottle.
(iii) Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water
(iv) No bubbles formed, only water entered the bottle.

Which observations is /are correct?

a) (i) and (ii) only

b) (iv) only

c) (iii) and (iv)

d) (i) only

Discussion

768.	Answer in one word: (a) What is used to measure the volume of a liquid? (b) What is used to find the area of an irregular surface? (c) In which units is petrol measured? (d) What is the unit of temperature?
Answer» Answer in one word: (a) What is used to measure the volume of a liquid? (b) What is used to find the area of an irregular surface? (c) In which units is petrol measured? (d) What is the unit of temperature?

768.

Answer in one word: (a) What is used to measure the volume of a liquid? (b) What is used to find the area of an irregular surface? (c) In which units is petrol measured? (d) What is the unit of temperature?

Answer»

Answer in one word:

(a) What is used to measure the volume of a liquid?

(b) What is used to find the area of an irregular surface?

(c) In which units is petrol measured?

(d) What is the unit of temperature?

Discussion

769.	The temperature of boiling water cannot be measured by a ___ thermometer.
Answer» The temperature of boiling water cannot be measured by a ___ thermometer.

Discussion

770.	Synthetic fibres are obtained from ________.
Answer» Synthetic fibres are obtained from ________.

Discussion

771.	The quality of combustion depends upon the _________ content in coal. The more the content ______ the combustion.
Answer» The quality of combustion depends upon the _________ content in coal. The more the content ______ the combustion.

Discussion

772.	Give examples to explain the difference between changes that can or cannot be reversed.
Answer» Give examples to explain the difference between changes that can or cannot be reversed.

Discussion

773.	The constituents of all mixtures are uniformly spread throughout the mixtures. True or false?
Answer» The constituents of all mixtures are uniformly spread throughout the mixtures. True or false?

Discussion

774.	Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example?
Answer» Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example?

Discussion

775.	which of the following combination of volumes (mL) of C2H4(g) and O2(g)respectivelyis required to obtain 400mL of CO2 (g).all volumes are measured at STP
Answer» which of the following combination of volumes (mL) of C2H4(g) and O2(g)respectivelyis required to obtain 400mL of CO2 (g).all volumes are measured at STP

Discussion

776.	What is the difference between distillation, distillation under reduced pressure and steam distillation ?
Answer» What is the difference between distillation, distillation under reduced pressure and steam distillation ?

Discussion

777.	Question 7 You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue? 1. Evaporation 2. Decantation 3. Filtration 4. Churning Which of the following combination is the correct answer?
Answer» Question 7 You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue? 1. Evaporation 2. Decantation 3. Filtration 4. Churning Which of the following combination is the correct answer?

777.

Question 7 You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue? 1. Evaporation 2. Decantation 3. Filtration 4. Churning Which of the following combination is the correct answer?

Answer»

Question 7

You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue?

1. Evaporation
2. Decantation
3. Filtration
4. Churning

Which of the following combination is the correct answer?

Discussion

778.	In distillation how water left in flask and we will only get acetone
Answer» In distillation how water left in flask and we will only get acetone

Discussion

779.	Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?
Answer» Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?

Discussion

780.	an ant is moving on plane horizontal surface . the no. of degrees of freedom of the ant will be
Answer» an ant is moving on plane horizontal surface . the no. of degrees of freedom of the ant will be

Discussion

781.	43. A mixture of carbon dioxide and water
Answer» 43. A mixture of carbon dioxide and water

Discussion

782.	For a fixed number of moles of a gas at constant volume, the pressure of the gas increases with rise of temperature due to
Answer» For a fixed number of moles of a gas at constant volume, the pressure of the gas increases with rise of temperature due to

Discussion

783.	A saturated solution is a solution in which
Answer» A saturated solution is a solution in which

Discussion

784.	whatisbananabond
Answer» whatisbananabond

Discussion

785.	It is there that matter changes there form when temperature increases and pressure decreases then what about a brick
Answer» It is there that matter changes there form when temperature increases and pressure decreases then what about a brick

Discussion

786.	The process of increasing the rate of sedimentation in a suspension by adding some chemical is known as ___ .
Answer» The process of increasing the rate of sedimentation in a suspension by adding some chemical is known as ___ .

Discussion

787.	Identify the coordinating conjunction in the sentence below. Sam was usually hard to find because of his short stature and sneaky behaviour.
Answer» Identify the coordinating conjunction in the sentence below. Sam was usually hard to find because of his short stature and sneaky behaviour.

787.

Identify the coordinating conjunction in the sentence below. Sam was usually hard to find because of his short stature and sneaky behaviour.

Answer»

Identify the coordinating conjunction in the sentence below.

Sam was usually hard to find because of his short stature and sneaky behaviour.

Discussion

788.	The process in which matter converts from gaseous state to the liquid state is called as .
Answer» The process in which matter converts from gaseous state to the liquid state is called as .

Discussion

789.	What is difference between alchemy and chemistry
Answer» What is difference between alchemy and chemistry

Discussion

790.	Handpicking stones from rice is a process of __________.
Answer» Handpicking stones from rice is a process of __________.

Discussion

791.	Some terms related to fabrics are jumbled up and given below. Write them in their correct form.(a) onttoc(b) sinnping(c) vingwea(d) bisref
Answer» Some terms related to fabrics are jumbled up and given below. Write them in their correct form. (a) onttoc (b) sinnping (c) vingwea (d) bisref

Discussion

792.	What does a change refer to in terms of a substance or an object?
Answer» What does a change refer to in terms of a substance or an object?

Discussion

793.	There are three items such as Pen , a regular sized brick and cricket bat Bat which among the above could weigh less than 1 kg?
Answer» There are three items such as Pen , a regular sized brick and cricket bat Bat which among the above could weigh less than 1 kg?

Discussion

794.	A mixture of salt and sugar is prepared by grinding them together. Do the molecules of the salt and sugar undergo any change?
Answer» A mixture of salt and sugar is prepared by grinding them together. Do the molecules of the salt and sugar undergo any change?

Discussion

795.	Fill in the blanks with appropriate words.(a) Synthetic fibres are also called ____ or ____ fibres.(b) Synthetic fibres are synthesised from raw material called____.(c) Like synthetic fibres, plastics is also a ____.
Answer» Fill in the blanks with appropriate words. (a) Synthetic fibres are also called ____ or ____ fibres. (b) Synthetic fibres are synthesised from raw material called____. (c) Like synthetic fibres, plastics is also a ____.

Discussion

796.	What is the difference between hydrometallurgy and leaching
Answer» What is the difference between hydrometallurgy and leaching

Discussion

797.	(a) Define atomicity with an example.(b) Write the historical name and systematic name of the following ions :Cu+,Cu+2,Fe+2,Fe+3
Answer» (a) Define atomicity with an example. (b) Write the historical name and systematic name of the following ions : $C u^{+}, C u^{+ 2}, F e^{+ 2}, F e^{+ 3}$

Discussion

798.	Name any five sources of freshwater.
Answer» Name any five sources of freshwater.

Discussion

799.	What happens when water is added to kerosene?
Answer» What happens when water is added to kerosene?

Discussion

800.	What is natural fibre, and how is it different from synthetic fibre?
Answer» What is natural fibre, and how is it different from synthetic fibre?

Discussion

Explore topic-wise InterviewSolutions in .

For any liquid, vapor pressure increases with increase in

When the air is cooled which gas changes in liquid first.

Question 12On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. They observed that the air coming out of their mouth looked like smoke. They were amused and wondered how it happened. Help them find the answer.

why solubility of co2>o2>N2?

What can be the maximum value of n- factor ??

A region of a lake is turned into a dead zone. Identify the correct reason for this.

What is the role of the ozone layer? When is world ozone day celebrated?

Which of these is a mixture?a. Common saltb. Oxygenc. Tap waterd. Iron sulphide

Relative density of an oil is 0.8. Find the absolute density of the oil in SI unit.

Write any three experiances where condensation of water vapour is observed.

The pictures show different types of same substance. Identify the substance.

What is absolute zero temperature?

What is super position principal?

Mettez le dialogue en ordre.1. Et vous madame?2. Qu'est - ce que vous voulez monsieur?3. Donnez - moi une limonade et du jus d'orange pour la femme.4. Je veux un sandwich au jambon et une salade verte.5. Ah ! Je veux du pain au chocolat.6. Et les boissons?

Answer in one word: (a) What is used to measure the volume of a liquid? (b) What is used to find the area of an irregular surface? (c) In which units is petrol measured? (d) What is the unit of temperature?

The temperature of boiling water cannot be measured by a ___ thermometer.

Synthetic fibres are obtained from ________.

The quality of combustion depends upon the _________ content in coal. The more the content ______ the combustion.

Give examples to explain the difference between changes that can or cannot be reversed.​

The constituents of all mixtures are uniformly spread throughout the mixtures. True or false?

Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example?

which of the following combination of volumes (mL) of C2H4(g) and O2(g)respectivelyis required to obtain 400mL of CO2 (g).all volumes are measured at STP

What is the difference between distillation, distillation under reduced pressure and steam distillation ?

Question 7 You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue? 1. Evaporation 2. Decantation 3. Filtration 4. Churning Which of the following combination is the correct answer?

In distillation how water left in flask and we will only get acetone

Name and describe briefly a method which can be helpful in separating a mixture of husk from grains. What is the principle of this method?

an ant is moving on plane horizontal surface . the no. of degrees of freedom of the ant will be

43. A mixture of carbon dioxide and water

For a fixed number of moles of a gas at constant volume, the pressure of the gas increases with rise of temperature due to

A saturated solution is a solution in which

whatisbananabond

It is there that matter changes there form when temperature increases and pressure decreases then what about a brick

The process of increasing the rate of sedimentation in a suspension by adding some chemical is known as ___ .

Identify the coordinating conjunction in the sentence below. Sam was usually hard to find because of his short stature and sneaky behaviour.

The process in which matter converts from gaseous state to the liquid state is called as .

What is difference between alchemy and chemistry

Handpicking stones from rice is a process of __________.

Some terms related to fabrics are jumbled up and given below. Write them in their correct form.​(a) onttoc​(b) sinnping(c) vingwea(d) bisref

What does a change refer to in terms of a substance or an object?

There are three items such as Pen , a regular sized brick and cricket bat Bat which among the above could weigh less than 1 kg?

A mixture of salt and sugar is prepared by grinding them together. Do the molecules of the salt and sugar undergo any change?

Fill in the blanks with appropriate words.​(a) Synthetic fibres are also called ____ or ____ fibres.​(b) Synthetic fibres are synthesised from raw material called____.(c) Like synthetic fibres, plastics is also a ____.

What is the difference between hydrometallurgy and leaching

(a) Define atomicity with an example.(b) Write the historical name and systematic name of the following ions :Cu+,Cu+2,Fe+2,Fe+3

Name any five sources of freshwater.

What happens when water is added to kerosene?

What is natural fibre, and how is it different from synthetic fibre?

The quality of combustion depends upon the ___ content in coal. The more the content the combustion.

Give examples to explain the difference between changes that can or cannot be reversed.

Some terms related to fabrics are jumbled up and given below. Write them in their correct form.(a) onttoc(b) sinnping(c) vingwea(d) bisref

Fill in the blanks with appropriate words.(a) Synthetic fibres are also called or fibres.(b) Synthetic fibres are synthesised from raw material called.(c) Like synthetic fibres, plastics is also a .