3275 + Interview Questions in Chemistry Page 23 InterviewSolution

1101.	Which property of a filter allows it to separate an insoluble solid from a liquid?
Answer» Which property of a filter allows it to separate an insoluble solid from a liquid?

Discussion

1102.	why is diamond hard?
Answer» why is diamond hard?

Discussion

1103.	If 1000kg of coal is burnt what is the output
Answer» If 1000kg of coal is burnt what is the output

Discussion

1104.	Define sedimentation and decantation.
Answer» Define sedimentation and decantation.

Discussion

1105.	Which of the following is/are animal fibres?
Answer» Which of the following is/are animal fibres?

Discussion

1106.	When you heat a substance, several changes can be observed. Talk about three of these changes.
Answer» When you heat a substance, several changes can be observed. Talk about three of these changes.

Discussion

1107.	What is formed by the physical combination of two or more substances, which retain their identities? Give an example of such substance.
Answer» What is formed by the physical combination of two or more substances, which retain their identities? Give an example of such substance.

Discussion

1108.	With the help of a labelled diagram show(a) Nitrogen cycle in nature(b) Describe briefly any two processes involved in the cycling of N2 in the environment.
Answer» With the help of a labelled diagram show (a) Nitrogen cycle in nature (b) Describe briefly any two processes involved in the cycling of N₂ in the environment.

Discussion

1109.	‘Rearing of sheep is a livestock’. Justify this statement.
Answer» ‘Rearing of sheep is a livestock’. Justify this statement.

Discussion

1110.	Two substances with same mass, one have volume of 100ml and other having volume of 110ml . Which of the two substances is more dense?
Answer» Two substances with same mass, one have volume of 100ml and other having volume of 110ml . Which of the two substances is more dense?

Discussion

1111.	Do you like/dislike Gaston? Give your reasons.
Answer» Do you like/dislike Gaston? Give your reasons.

Discussion

1112.	Question 7 (c) Find the odd one out from the following: Aluminium, Iron, Copper, Silver, Sand
Answer» Question 7 (c) Find the odd one out from the following: Aluminium, Iron, Copper, Silver, Sand

1112.

Question 7 (c) Find the odd one out from the following: Aluminium, Iron, Copper, Silver, Sand

Answer»

Question 7 (c)

Find the odd one out from the following:
Aluminium, Iron, Copper, Silver, Sand

Discussion

1113.	Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However, the other did not shrink on burning. Can you help her to find out which of the two was cotton fabric and which silk fabric?
Answer» Once, Paheli visited a tailor shop and brought home some cuttings of fabric to study their properties. She took two pieces and found that one of the pieces were shrinking when it was burnt with a candle. However, the other did not shrink on burning. Can you help her to find out which of the two was cotton fabric and which silk fabric?

Discussion

1114.	Question 6 (a)Give reasons for the following.Aluminium foils are used to wrap food items.
Answer» Question 6 (a) Give reasons for the following. Aluminium foils are used to wrap food items.

Discussion

1115.	The process by which oxygen is taken in and carbon dioxide is given out is known as ___ .
Answer» The process by which oxygen is taken in and carbon dioxide is given out is known as ___ .

Discussion

1116.	Which of the following is hardest among the given options?
Answer» Which of the following is hardest among the given options?

Discussion

1117.	Setting milk into curd is an example of:
Answer» Setting milk into curd is an example of:

Discussion

1118.	Here are some 'doing' words in the storywalking smiling blowing pullingFind three more 'doing' words in the story that end in ing and then write them here.__________ __________ __________
Answer» Here are some 'doing' words in the story walking smiling blowing pulling Find three more 'doing' words in the story that end in ing and then write them here. __________ __________ __________

Discussion

1119.	Name some varieties of clothing material.
Answer» Name some varieties of clothing material.

Discussion

1120.	Calculate wavelenght of first line and last line of Balmer's series of hydrogen spectrum
Answer» Calculate wavelenght of first line and last line of Balmer's series of hydrogen spectrum

Discussion

1121.	Identify the step in the processing of wool.
Answer» Identify the step in the processing of wool.

Discussion

1122.	Which property is common to all matter?(a) Matter takes up space and has no mass.(b) Matter can be seen and has some mass.(c) Matter takes up space and has mass.(d) Matter takes up space and may or may not have mass.
Answer» Which property is common to all matter? (a) Matter takes up space and has no mass. (b) Matter can be seen and has some mass. (c) Matter takes up space and has mass. (d) Matter takes up space and may or may not have mass.

Discussion

1123.	Modern day _________ are made of water proof materials, like canvas cloth or nylon.
Answer» Modern day _________ are made of water proof materials, like canvas cloth or nylon.

Discussion

1124.	Most of the water on Earth surface is found in:
Answer» Most of the water on Earth surface is found in:

Discussion

1125.	Classify the following into pure substances or mixtures oxygen, steel, copper sulphate, lemon juice.
Answer» Classify the following into pure substances or mixtures oxygen, steel, copper sulphate, lemon juice.

Discussion

1126.	Explain how you would separate a mixture of oil and vinegar in brief.
Answer» Explain how you would separate a mixture of oil and vinegar in brief.

Discussion

1127.	What is the charge of Mg in MgCl2 ?
Answer» What is the charge of Mg in $M g {C l}_{2}$ ?

Discussion

1128.	Name a non-metal which is in liquid state at room temperature.
Answer» Name a non-metal which is in liquid state at room temperature.

Discussion

1129.	Can water be in all states of matter?
Answer» Can water be in all states of matter?

Discussion

1130.	Question 11A sample of water under study was found to boil at 102∘C at normal temperature and pressure. Is the water pure? Will this water freeze at 0∘C? Comment.
Answer» Question 11 A sample of water under study was found to boil at 102 $^{\circ}$ C at normal temperature and pressure. Is the water pure? Will this water freeze at 0 $^{\circ}$ C? Comment.

Discussion

1131.	Identify the collective noun from the sentence below. The mischief of mice ran into the holes when the lights were turned on.
Answer» Identify the collective noun from the sentence below. The mischief of mice ran into the holes when the lights were turned on.

1131.

Identify the collective noun from the sentence below. The mischief of mice ran into the holes when the lights were turned on.

Answer»

Identify the collective noun from the sentence below.

The mischief of mice ran into the holes when the lights were turned on.

Discussion

1132.	Choose the appropriate adjective in the underlined noun to complete the following proverb. __________ dark cloud has a silver lining.
Answer» Choose the appropriate adjective in the underlined noun to complete the following proverb. __________ dark cloud has a silver lining.

1132.

Choose the appropriate adjective in the underlined noun to complete the following proverb. __________ dark cloud has a silver lining.

Answer»

Choose the appropriate adjective in the underlined noun to complete the following proverb.

__________ dark cloud has a silver lining.

Discussion

1133.	Read this sentence. M. Hamel had said that he would question us on participles. In the sentence above, the verb form “had said” in the first part is used to indicate an “earlier past.” The whole story is narrated in the past. M. Hamel’s “saying” happened earlier than the events in this story. This form of the verb is called the past perfect. Pick out five sentences from the story with this form of verb and say why this form has been used.
Answer» Read this sentence. M. Hamel had said that he would question us on participles. In the sentence above, the verb form “had said” in the first part is used to indicate an “earlier past.” The whole story is narrated in the past. M. Hamel’s “saying” happened earlier than the events in this story. This form of the verb is called the past perfect. Pick out five sentences from the story with this form of verb and say why this form has been used.

1133.

Read this sentence. M. Hamel had said that he would question us on participles. In the sentence above, the verb form “had said” in the first part is used to indicate an “earlier past.” The whole story is narrated in the past. M. Hamel’s “saying” happened earlier than the events in this story. This form of the verb is called the past perfect. Pick out five sentences from the story with this form of verb and say why this form has been used.

Answer»

Read this sentence.

M. Hamel had said that he would question us on participles.

In the sentence above, the verb form “had said” in the first part is used to indicate an “earlier past.” The whole story is narrated in the past. M. Hamel’s “saying” happened earlier than the events in this story. This form of the verb is called the past perfect.

Pick out five sentences from the story with this form of verb and say why this form has been used.

Discussion

1134.	Transpiration occurs from which part of the tree?
Answer» Transpiration occurs from which part of the tree?

Discussion

1135.	The description which most approximately suits sulphur dioxide gas is that it is colourless and :(1) insoluble in water(2) has pungent and suffocating odour(3) lighter than air(4) has smell of rotten eggs
Answer» The description which most approximately suits sulphur dioxide gas is that it is colourless and : (1) insoluble in water (2) has pungent and suffocating odour (3) lighter than air (4) has smell of rotten eggs

Discussion

1136.	Among Water, Kerosene, and Oil, which do you think is heavier?
Answer» Among Water, Kerosene, and Oil, which do you think is heavier?

Discussion

1137.	What are the three methods of removing germs from natural water? Explain.
Answer» What are the three methods of removing germs from natural water? Explain.

Discussion

1138.	Explain the preparation of butter from milk.
Answer» Explain the preparation of butter from milk.

Discussion

1139.	In the magnetic seperation method which possess magnetic properties the ore or the gangue particles.
Answer» In the magnetic seperation method which possess magnetic properties the ore or the gangue particles.

Discussion

1140.	The process of adding alum to water to hasten sedimentation is called 'loading'. Why has this name been given to the process?
Answer» The process of adding alum to water to hasten sedimentation is called 'loading'. Why has this name been given to the process?

Discussion

1141.	Q. With no access to potable, piped drinking water in most of the Indian homes, and Women’s burden to fetch water for daily use is essentially robbing them of their life. Discuss.
Answer» Q. With no access to potable, piped drinking water in most of the Indian homes, and Women’s burden to fetch water for daily use is essentially robbing them of their life. Discuss.

Discussion

1142.	Question 12Which of the following is (are) an endothermic process(es)?(i) Dilution of sulphuric acid.(ii) Sublimation of dry ice.(iii) Condensation of water vapours.(iv) Evaporation of water.(a) (i) and (iii)(b) (ii) only(c) (iii) only(d) (ii) and (iv)
Answer» Question 12 Which of the following is (are) an endothermic process(es)? (i) Dilution of sulphuric acid. (ii) Sublimation of dry ice. (iii) Condensation of water vapours. (iv) Evaporation of water. (a) (i) and (iii) (b) (ii) only (c) (iii) only (d) (ii) and (iv)

1142.

Question 12Which of the following is (are) an endothermic process(es)?(i) Dilution of sulphuric acid.(ii) Sublimation of dry ice.(iii) Condensation of water vapours.(iv) Evaporation of water.(a) (i) and (iii)(b) (ii) only(c) (iii) only(d) (ii) and (iv)

Answer»

Question 12

Which of the following is (are) an endothermic process(es)?

(i) Dilution of sulphuric acid.

(ii) Sublimation of dry ice.

(iii) Condensation of water vapours.

(iv) Evaporation of water.

(a) (i) and (iii)

(b) (ii) only

(c) (iii) only

(d) (ii) and (iv)

Discussion

1143.	Mention four natural resources that helped life to originate and survive on the earth.
Answer» Mention four natural resources that helped life to originate and survive on the earth.

Discussion

1144.	what is microbes in industrial products?
Answer» what is microbes in industrial products?

Discussion

1145.	Is it only for H2/Pt that the enthalpy change is +ve; entropy change is +ve ?
Answer» Is it only for H2/Pt that the enthalpy change is +ve; entropy change is +ve ?

Discussion

1146.	Sunlight and groundwater are both renewable resources. What is the difference between them?
Answer» Sunlight and groundwater are both renewable resources. What is the difference between them?

Discussion

1147.	Is fire living or nonliving?
Answer» Is fire living or nonliving?

Discussion

1148.	The husk can be separated from rice by using ___ method.
Answer» The husk can be separated from rice by using ___ method.

Discussion

1149.	Most of the water on Earth's surface is found in ________.
Answer» Most of the water on Earth's surface is found in ________.

Discussion

1150.	Which mixture is labeled incorrectly?
Answer» Which mixture is labeled incorrectly?

Discussion

Explore topic-wise InterviewSolutions in .

Which property of a filter allows it to separate an insoluble solid from a liquid?

why is diamond hard?

If 1000kg of coal is burnt what is the output

Define sedimentation and decantation.

Which of the following is/are animal fibres?

When you heat a substance, several changes can be observed. Talk about three of these changes.

What is formed by the physical combination of two or more substances, which retain their identities? Give an example of such substance.

With the help of a labelled diagram show(a) Nitrogen cycle in nature​(b) Describe briefly any two processes involved in the cycling of N2 in the environment.

‘Rearing of sheep is a livestock’. Justify this statement.

Two substances with same mass, one have volume of 100ml and other having volume of 110ml . Which of the two substances is more dense?

Do you like/dislike Gaston? Give your reasons.

Question 7 (c) Find the odd one out from the following: Aluminium, Iron, Copper, Silver, Sand

Question 6 (a)Give reasons for the following.Aluminium foils are used to wrap food items.

The process by which oxygen is taken in and carbon dioxide is given out is known as ___ .

Which of the following is hardest among the given options?

Setting milk into curd is an example of:

Here are some 'doing' words in the storywalking smiling blowing pullingFind three more 'doing' words in the story that end in ing and then write them here.__________ __________ __________

Name some varieties of clothing material.

Calculate wavelenght of first line and last line of Balmer's series of hydrogen spectrum

Identify the step in the processing of wool.

Which property is common to all matter?(a) Matter takes up space and has no mass.(b) Matter can be seen and has some mass.(c) Matter takes up space and has mass.(d) Matter takes up space and may or may not have mass.

Modern day _________ are made of water proof materials, like canvas cloth or nylon.

Most of the water on Earth surface is found in:

Classify the following into pure substances or mixtures oxygen, steel, copper sulphate, lemon juice.

Explain how you would separate a mixture of oil and vinegar in brief.

What is the charge of Mg in MgCl2 ?

Name a non-metal which is in liquid state at room temperature.

Can water be in all states of matter?

Question 11A sample of water under study was found to boil at 102∘C at normal temperature and pressure. Is the water pure? Will this water freeze at 0∘C? Comment.

Identify the collective noun from the sentence below. The mischief of mice ran into the holes when the lights were turned on.

Choose the appropriate adjective in the underlined noun to complete the following proverb. __________ dark cloud has a silver lining.

Transpiration occurs from which part of the tree?

The description which most approximately suits sulphur dioxide gas is that it is colourless and :(1) insoluble in water(2) has pungent and suffocating odour(3) lighter than air(4) has smell of rotten eggs

Among Water, Kerosene, and Oil, which do you think is heavier?

What are the three methods of removing germs from natural water? Explain.

Explain the preparation of butter from milk.

In the magnetic seperation method which possess magnetic properties the ore or the gangue particles.

The process of adding alum to water to hasten sedimentation is called 'loading'. Why has this name been given to the process?

Q. With no access to potable, piped drinking water in most of the Indian homes, and Women’s burden to fetch water for daily use is essentially robbing them of their life. Discuss.

Question 12Which of the following is (are) an endothermic process(es)?(i) Dilution of sulphuric acid.(ii) Sublimation of dry ice.(iii) Condensation of water vapours.(iv) Evaporation of water.(a) (i) and (iii)(b) (ii) only(c) (iii) only(d) (ii) and (iv)

Mention four natural resources that helped life to originate and survive on the earth.

what is microbes in industrial products?

Is it only for H2/Pt that the enthalpy change is +ve; entropy change is +ve ?

Sunlight and groundwater are both renewable resources. What is the difference between them?

Is fire living or nonliving?

The husk can be separated from rice by using ___ method.

Most of the water on Earth's surface is found in ________.

Which mixture is labeled incorrectly?

With the help of a labelled diagram show(a) Nitrogen cycle in nature(b) Describe briefly any two processes involved in the cycling of N2 in the environment.

Here are some 'doing' words in the storywalking smiling blowing pullingFind three more 'doing' words in the story that end in ing and then write them here. __