3275 + Interview Questions in Chemistry Page 5 InterviewSolution

201.	Which one of the following depicts characteristics of matter?
Answer» Which one of the following depicts characteristics of matter?

Discussion

202.	A lot of threads are brought together to form a ___.
Answer» A lot of threads are brought together to form a ___.

Discussion

203.	Which properties of synthetic fibres make them useful?
Answer» Which properties of synthetic fibres make them useful?

Discussion

204.	What is carbon dioxide's content in air
Answer» What is carbon dioxide's content in air

Discussion

205.	What is the winnowing method? What is the fundamental principle involved in this method?
Answer» What is the winnowing method? What is the fundamental principle involved in this method?

Discussion

206.	Why can't we see the evaporation of water?
Answer» Why can't we see the evaporation of water?

Discussion

207.	Give five methods to conserve water at an individual level.
Answer» Give five methods to conserve water at an individual level.

Discussion

208.	What are the different forms of precipitation than rain?
Answer» What are the different forms of precipitation than rain?

Discussion

209.	Question 2 Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it? (a) Filtration (b) Decantation (c) Churning (d) Winnowing
Answer» Question 2 Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it? (a) Filtration (b) Decantation (c) Churning (d) Winnowing

209.

Question 2 Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it? (a) Filtration (b) Decantation (c) Churning (d) Winnowing

Answer»

Question 2

Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it?

(a) Filtration

(b) Decantation

(c) Churning

(d) Winnowing

Discussion

210.	Which of the following is a man made fibre?
Answer» Which of the following is a man made fibre?

Discussion

211.	1. At STP, the density of nitrogen monoxide is - 1.] 3 gram per L 2.] 30 gram per L 3.] 1.34gram per L 4.] 2.68gram per L
Answer» 1. At STP, the density of nitrogen monoxide is - 1.] 3 gram per L 2.] 30 gram per L 3.] 1.34gram per L 4.] 2.68gram per L

Discussion

212.	What is sublimation? Mention any two solids that undergo sublimation.
Answer» What is sublimation? Mention any two solids that undergo sublimation.

Discussion

213.	Question 2If there were no atmosphere around the earth, the temperature of the earth will(a) increase(b) go on decreasing(c) increase during day and decrease during night(d) be unaffected
Answer» Question 2 If there were no atmosphere around the earth, the temperature of the earth will (a) increase (b) go on decreasing (c) increase during day and decrease during night (d) be unaffected

Discussion

214.	Cookies and ice cream would be classified as
Answer» Cookies and ice cream would be classified as

Discussion

215.	how to find value of cos 225
Answer» how to find value of cos 225

Discussion

216.	silicon form a long chain polymer known as
Answer» silicon form a long chain polymer known as

Discussion

217.	A/an ___________ is a simple substance which cannot be further divided into one or more pure components by any chemical means. Whereas, a/an ___________ is a chemical combination of two or more simple substances.
Answer» A/an ___________ is a simple substance which cannot be further divided into one or more pure components by any chemical means. Whereas, a/an ___________ is a chemical combination of two or more simple substances.

Discussion

218.	When does a drought occur?
Answer» When does a drought occur?

Discussion

219.	56.Difference between enantiomeres and racemic mixtures?
Answer» 56.Difference between enantiomeres and racemic mixtures?

Discussion

220.	Question 22 (iv)Fill in the blanks(iv) A fibre similar to wool is ___.
Answer» Question 22 (iv) Fill in the blanks (iv) A fibre similar to wool is ___.

Discussion

221.	What are the methods of removing the hardness of water?
Answer» What are the methods of removing the hardness of water?

221.

What are the methods of removing the hardness of water?

Answer»

What are the methods of removing the hardness of water?

Discussion

222.	Which of the following sets comprise of natural fibres only?
Answer» Which of the following sets comprise of natural fibres only?

Discussion

223.	Do as directed :(a) Write the apparatus used and observations made in the experiment done to separate sand and salt from their mixture.(b) Write the procedure followed and draw the diagram of the apparatus used in the experiment for separating a sublimating substance from a mixture.
Answer» Do as directed : (a) Write the apparatus used and observations made in the experiment done to separate sand and salt from their mixture. (b) Write the procedure followed and draw the diagram of the apparatus used in the experiment for separating a sublimating substance from a mixture.

223.

Do as directed :(a) Write the apparatus used and observations made in the experiment done to separate sand and salt from their mixture.(b) Write the procedure followed and draw the diagram of the apparatus used in the experiment for separating a sublimating substance from a mixture.

Answer»

Do as directed :

(a) Write the apparatus used and observations made in the experiment done to separate sand and salt from their mixture.

(b) Write the procedure followed and draw the diagram of the apparatus used in the experiment for separating a sublimating substance from a mixture.

Discussion

224.	Ozone is present in the upper layer of the atmosphere called the ___ .
Answer» Ozone is present in the upper layer of the atmosphere called the ___ .

Discussion

225.	Question 11.1 In the boxes of Column I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II.
Answer» Question 11.1 In the boxes of Column I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II.

225.

Question 11.1 In the boxes of Column I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II.

Answer»

Question 11.1

In the boxes of Column I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II.

Discussion

226.

Fill in the blanks with rhyming words. Hill _______ _ Hay _ _ Fine _ _ Get _ _ Going _ _ Hare _ _______

Answer» Fill in the blanks with rhyming words.

Hill	_______________	_______________
Hay	_______________	_______________
Fine	_______________	_______________
Get	_______________	_______________
Going	_______________	_______________
Hare	_______________	_______________

Discussion

227.	When should bleaching or dyeing of fabrics will be usually done?
Answer» When should bleaching or dyeing of fabrics will be usually done?

Discussion

228.	Density of air____________ with height.
Answer» Density of air____________ with height.

Discussion

229.	On complete combustion of methane, we get a material that is
Answer» On complete combustion of methane, we get a material that is

Discussion

230.

Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not. S. No. Change Can be reversed (Yes/No) 1. The sawing of a piece of wood - 2. The melting of ice candy - 3. Dissolving sugar in water - 4. The cooking of food - 5. The ripening of a mango - 6. Souring of milk -

Answer»

Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.

S. No.	Change	Can be reversed (Yes/No)
1.	The sawing of a piece of wood	-
2.	The melting of ice candy	-
3.	Dissolving sugar in water	-
4.	The cooking of food	-
5.	The ripening of a mango	-
6.	Souring of milk	-

Discussion

231.	Why do we float on the Dead Sea?
Answer» Why do we float on the Dead Sea?

Discussion

232.	The dust particles in the water can be helped to settle down faster by using:
Answer» The dust particles in the water can be helped to settle down faster by using:

Discussion

233.	The most visually striking evidence of global warming is:
Answer» The most visually striking evidence of global warming is:

233.

The most visually striking evidence of global warming is:

Answer»

The most visually striking evidence of global warming is:

Discussion

234.	Most common method of separation used in laboratory to separate insoluble solid from a liquid is:
Answer» Most common method of separation used in laboratory to separate insoluble solid from a liquid is:

Discussion

235.	The force that keeps the particles of matter together is:
Answer» The force that keeps the particles of matter together is:

Discussion

236.	Match the following: ObjectsEnergy Conversions1) Bicyclea)Sun's energy to electrical energy2)Engineb)Muscular energy to mechanical energy3)Wind turbinec)Heat energy to mechanical energy4)Solar paneld)Wind energy to electrical energy
Answer» Match the following: $\begin{matrix} Objects & Energy Conversions 1) Bicycle & a) Sun's energy to electrical energy 2) Engine & b) Muscular energy to mechanical energy 3) Wind turbine & c) Heat energy to mechanical energy 4) Solar panel & d) Wind energy to electrical energy \end{matrix}$

Discussion

237.	The leaf is called the food factory of the plant. Why?
Answer» The leaf is called the food factory of the plant. Why?

Discussion

238.	If A ↗→ K1 = 2 * 10^3 s^-1 B → ↘→ K2 = 6 * 10^3 s^-1 C Find B%
Answer» If A ↗→ K1 = 2 * 10^3 s^-1 B → ↘→ K2 = 6 * 10^3 s^-1 C Find B%

Discussion

239.	Question 5 Four mixtures are given below (i) Kidney beans and chick peas (ii) Pulses and rice (iii) Rice flakes and corn (iv) Potato wafers and biscuits Which of these can be separated by the method of winnowing?
Answer» Question 5 Four mixtures are given below (i) Kidney beans and chick peas (ii) Pulses and rice (iii) Rice flakes and corn (iv) Potato wafers and biscuits Which of these can be separated by the method of winnowing?

239.

Question 5 Four mixtures are given below (i) Kidney beans and chick peas (ii) Pulses and rice (iii) Rice flakes and corn (iv) Potato wafers and biscuits Which of these can be separated by the method of winnowing?

Answer»

Question 5

Four mixtures are given below

(i) Kidney beans and chick peas
(ii) Pulses and rice
(iii) Rice flakes and corn
(iv) Potato wafers and biscuits

Which of these can be separated by the method of winnowing?

Discussion

240.	1)Compare the stability, boiling point, volatile nature of intermolecular hydrogen bonding and intramolecular hydrogen bonding 2) which is more acidic Ortho nitrophenol or para nitrophenol
Answer» 1)Compare the stability, boiling point, volatile nature of intermolecular hydrogen bonding and intramolecular hydrogen bonding 2) which is more acidic Ortho nitrophenol or para nitrophenol

Discussion

241.	Difference between reversible and irreversible changes
Answer» Difference between reversible and irreversible changes

Discussion

242.	Deduce the molecular formulae of these compounds C (Valency 4) & Cl (Valency 1)
Answer» Deduce the molecular formulae of these compounds C (Valency 4) & Cl (Valency 1)

Discussion

243.	How does the water in rivers, lakes, seas, and oceans never get over? Explain. [3 MARKS]
Answer» How does the water in rivers, lakes, seas, and oceans never get over? Explain. [3 MARKS]

Discussion

244.	Ram’s teacher wrote two statements on the board. Find out whether the statements are True or False.(i) Crushing an empty can is a chemical change.(ii) Folding a paper is a physical change.
Answer» Ram’s teacher wrote two statements on the board. Find out whether the statements are True or False. (i) Crushing an empty can is a chemical change. (ii) Folding a paper is a physical change.

244.

Ram’s teacher wrote two statements on the board. Find out whether the statements are True or False.(i) Crushing an empty can is a chemical change.(ii) Folding a paper is a physical change.

Answer»

Ram’s teacher wrote two statements on the board. Find out whether the statements are True or False.

(i) Crushing an empty can is a chemical change.

(ii) Folding a paper is a physical change.

Discussion

245.	It is a bright silvery-white metal, with high tensile strength. It has a high electrical and thermal conductivity. On a weight-to-weight basis, the electrical conductivity of this metal is twice that of copper
Answer» It is a bright silvery-white metal, with high tensile strength. It has a high electrical and thermal conductivity. On a weight-to-weight basis, the electrical conductivity of this metal is twice that of copper

Discussion

246.	Explain the process of respiration in plants.
Answer» Explain the process of respiration in plants.

Discussion

247.	The layer of air around the Earth is known as
Answer» The layer of air around the Earth is known as

Discussion

248.	The changes that take place in a short duration of time are called ___ .
Answer» The changes that take place in a short duration of time are called ___ .

Discussion

249.	Peanuts are separated from a mixture of peanuts and corn by ___
Answer» Peanuts are separated from a mixture of peanuts and corn by ___

Discussion

250.	What is the density of 5 litres of water having mass 5 kg?
Answer» What is the density of 5 litres of water having mass 5 kg?

Discussion

Explore topic-wise InterviewSolutions in .

Which one of the following depicts characteristics of matter?

A lot of threads are brought together to form a ___.

Which properties of synthetic fibres make them useful?

What is carbon dioxide's content in air

What is the winnowing method? What is the fundamental principle involved in this method?

Why can't we see the evaporation of water?

Give five methods to conserve water at an individual level.

What are the different forms of precipitation than rain?

Question 2 Boojho’s grandmother is suffering from diabetes. Her doctor advised her to take ‘Lassi’ with less fat content. Which of the following methods would be most appropriate for Boojho to prepare it? (a) Filtration (b) Decantation (c) Churning (d) Winnowing

Which of the following is a man made fibre?

1. At STP, the density of nitrogen monoxide is - 1.] 3 gram per L 2.] 30 gram per L 3.] 1.34gram per L 4.] 2.68gram per L

What is sublimation? Mention any two solids that undergo sublimation.

Question 2If there were no atmosphere around the earth, the temperature of the earth will(a) increase(b) go on decreasing(c) increase during day and decrease during night(d) be unaffected

Cookies and ice cream would be classified as

how to find value of cos 225

silicon form a long chain polymer known as

A/an ___________ is a simple substance which cannot be further divided into one or more pure components by any chemical means. Whereas, a/an ___________ is a chemical combination of two or more simple substances.

When does a drought occur?

56.Difference between enantiomeres and racemic mixtures?

Question 22 (iv)Fill in the blanks(iv) A fibre similar to wool is ___.

What are the methods of removing the hardness of water?

Which of the following sets comprise of natural fibres only?

Do as directed :(a) Write the apparatus used and observations made in the experiment done to separate sand and salt from their mixture.(b) Write the procedure followed and draw the diagram of the apparatus used in the experiment for separating a sublimating substance from a mixture.

Ozone is present in the upper layer of the atmosphere called the ___ .

Question 11.1 In the boxes of Column I the letters of some words got jumbled. Arrange them in proper form in the boxes given in Column II.

Fill in the blanks with rhyming words. Hill _______________ _______________ Hay _______________ _______________ Fine _______________ _______________ Get _______________ _______________ Going _______________ _______________ Hare _______________ _______________

When should bleaching or dyeing of fabrics will be usually done?

Density of air____________ with height.

On complete combustion of methane, we get a material that is

Why do we float on the Dead Sea?

The dust particles in the water can be helped to settle down faster by using:

The most visually striking evidence of global warming is:

Most common method of separation used in laboratory to separate insoluble solid from a liquid is:

The force that keeps the particles of matter together is:

Match the following: ObjectsEnergy Conversions1) Bicyclea)Sun's energy to electrical energy2)Engineb)Muscular energy to mechanical energy3)Wind turbinec)Heat energy to mechanical energy4)Solar paneld)Wind energy to electrical energy

The leaf is called the food factory of the plant. Why?

If A ↗→ K1 = 2 * 10^3 s^-1 B → ↘→ K2 = 6 * 10^3 s^-1 C Find B%

Question 5 Four mixtures are given below (i) Kidney beans and chick peas (ii) Pulses and rice (iii) Rice flakes and corn (iv) Potato wafers and biscuits Which of these can be separated by the method of winnowing?

1)Compare the stability, boiling point, volatile nature of intermolecular hydrogen bonding and intramolecular hydrogen bonding 2) which is more acidic Ortho nitrophenol or para nitrophenol

Difference between reversible and irreversible changes

Deduce the molecular formulae of these compounds C (Valency 4) & Cl (Valency 1)

How does the water in rivers, lakes, seas, and oceans never get over? Explain. [3 MARKS]

Ram’s teacher wrote two statements on the board. Find out whether the statements are True or False.(i) Crushing an empty can is a chemical change.(ii) Folding a paper is a physical change.

It is a bright silvery-white metal, with high tensile strength. It has a high electrical and thermal conductivity. On a weight-to-weight basis, the electrical conductivity of this metal is twice that of copper

Explain the process of respiration in plants.

The layer of air around the Earth is known as

The changes that take place in a short duration of time are called ___ .

Peanuts are separated from a mixture of peanuts and corn by ___

What is the density of 5 litres of water having mass 5 kg?

A/an _ is a simple substance which cannot be further divided into one or more pure components by any chemical means. Whereas, a/an _ is a chemical combination of two or more simple substances.

Fill in the blanks with rhyming words. Hill _______ _ Hay _ _ Fine _ _ Get _ _ Going _ _ Hare _ _______