3275 + Interview Questions in Chemistry Page 9 InterviewSolution

401.	Sometimes, when a person is caught with fire, a thick blanket is wrapped around him or her. This is done to
Answer» Sometimes, when a person is caught with fire, a thick blanket is wrapped around him or her. This is done to

Discussion

402.	Difference between solute and solven
Answer» Difference between solute and solven

Discussion

403.	Is CHDT-OH a chiral compound??
Answer» Is CHDT-OH a chiral compound??

Discussion

404.	You will probably agree that this story does not have breathless adventure and exciting action. Then what in your opinion makes it interesting?
Answer» You will probably agree that this story does not have breathless adventure and exciting action. Then what in your opinion makes it interesting?

Discussion

405.	Explain the difference between physical and chemical changes, giving one example of each.
Answer» Explain the difference between physical and chemical changes, giving one example of each.

Discussion

406.	Question 11Should the handle and bristles of a toothbrush be made of the same material? Explain your solution.
Answer» Question 11 Should the handle and bristles of a toothbrush be made of the same material? Explain your solution.

Discussion

407.	Statement I:- X enables everything to work. Statement II:- X follows the law of conservation. Statement III:- X moves from one body to other and it enables things to move, grow or interact. Identify "X" from the given options.
Answer» Statement I:- X enables everything to work. Statement II:- X follows the law of conservation. Statement III:- X moves from one body to other and it enables things to move, grow or interact. Identify "X" from the given options.

407.

Statement I:- X enables everything to work. Statement II:- X follows the law of conservation. Statement III:- X moves from one body to other and it enables things to move, grow or interact. Identify "X" from the given options.

Answer»

Statement I:- X enables everything to work.

Statement II:- X follows the law of conservation.

Statement III:- X moves from one body to other and it enables things to move, grow or interact.

Identify "X" from the given options.

Discussion

408.	What is the key difference between heat and temperature?
Answer» What is the key difference between heat and temperature?

Discussion

409.	What is a milk prouct obtained by gently heating butter?
Answer» What is a milk prouct obtained by gently heating butter?

Discussion

410.	Classify the given materials based on the property of lustre.Iron rod, gold coin, charcoal, wooden scale, copper wire, silver bar, sulphur powder, phosphorous powder, aluminium container.
Answer» Classify the given materials based on the property of lustre. Iron rod, gold coin, charcoal, wooden scale, copper wire, silver bar, sulphur powder, phosphorous powder, aluminium container.

Discussion

411.	POAC HOW TO APPLY
Answer» POAC HOW TO APPLY

Discussion

412.	Give any three important uses of water.
Answer» Give any three important uses of water.

Discussion

413.	Give two examples for each of the following:(a) metals(b) non-metals(c) metalloids
Answer» Give two examples for each of the following: (a) metals (b) non-metals (c) metalloids

Discussion

414.	The cotton fibres are combed, straightened and converted into strands called?
Answer» The cotton fibres are combed, straightened and converted into strands called?

Discussion

415.	Can we get back the wood after it is burnt? Why or why not? What kind of change is it?
Answer» Can we get back the wood after it is burnt? Why or why not? What kind of change is it?

Discussion

416.	Earth's surface has ____ percent of fresh water and ______ percent of saline water.
Answer» Earth's surface has ____ percent of fresh water and ______ percent of saline water.

Discussion

417.	Sea water has salt dissolved in it. You know that pure water can be obtained from sea water by distillation. However, this method is not used to get drinking water from sea water. What do you think is teh reason?
Answer» Sea water has salt dissolved in it. You know that pure water can be obtained from sea water by distillation. However, this method is not used to get drinking water from sea water. What do you think is teh reason?

Discussion

418.	Question 2The substance that will be flattened on beating with a hammer is(a) crystal of iodine(b) lump of sulphur(c) piece of coal(d) zinc granule
Answer» Question 2 The substance that will be flattened on beating with a hammer is (a) crystal of iodine (b) lump of sulphur (c) piece of coal (d) zinc granule

Discussion

419.	Fill in the blanks : (a) Air is a mixture of ……………. . (b) During the monsoons, ……………. is swirled through drinking water. (c) ……………. is a sublimating substance.
Answer» Fill in the blanks : (a) Air is a mixture of ……………. . (b) During the monsoons, ……………. is swirled through drinking water. (c) ……………. is a sublimating substance.

419.

Fill in the blanks : (a) Air is a mixture of ……………. . (b) During the monsoons, ……………. is swirled through drinking water. (c) ……………. is a sublimating substance.

Answer»

Fill in the blanks :

(a) Air is a mixture of ……………. .

(b) During the monsoons, ……………. is swirled through drinking water.

(c) ……………. is a sublimating substance.

Discussion

420.	96 Define annealing and super cooling of glass.
Answer» 96 Define annealing and super cooling of glass.

Discussion

421.	Question 13 Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile. Topsoil, Subsoil, C−horizon, Bedrock
Answer» Question 13 Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile. $\begin{matrix} T o p s o i l, S u b s o i l, C - h o r i z o n, B e d r o c k \end{matrix}$

421.

Question 13 Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile. Topsoil, Subsoil, C−horizon, Bedrock

Answer»

Question 13

Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile.

$\begin{matrix} T o p s o i l, S u b s o i l, C - h o r i z o n, B e d r o c k \end{matrix}$

Discussion

422.	What is carboxylicacid
Answer» What is carboxylicacid

Discussion

423.	Question 4 (b)The process of separation of different constituents of petroleum is called ______.
Answer» Question 4 (b) The process of separation of different constituents of petroleum is called ______.

Discussion

424.	What is the difference between melting point and boiling point
Answer» What is the difference between melting point and boiling point

Discussion

425.	All the substances given below are examples of an _________.
Answer» All the substances given below are examples of an _________.

Discussion

426.	Question 2 (f) State whether the following statement is true or false: Silk fibre is obtained from the stem of a plant.
Answer» Question 2 (f) State whether the following statement is true or false: Silk fibre is obtained from the stem of a plant.

426.

Question 2 (f) State whether the following statement is true or false: Silk fibre is obtained from the stem of a plant.

Answer»

Question 2 (f)

State whether the following statement is true or false:
Silk fibre is obtained from the stem of a plant.

Discussion

427.	In preparing tea, the tea leaves are filtered in order to:
Answer» In preparing tea, the tea leaves are filtered in order to:

Discussion

428.	What is istropy of space and tension in a string?? ?
Answer» What is istropy of space and tension in a string?? ?

Discussion

429.	Select the correct statement regarding filtration.
Answer» Select the correct statement regarding filtration.

Discussion

430.	Question 6Incomplete combustion of fuel such as petrol and diesel gives(a) Nitrogen oxide(b) Sulphur dioxide(c) Carbon monoxide(d) Carbon dioxide
Answer» Question 6 Incomplete combustion of fuel such as petrol and diesel gives (a) Nitrogen oxide (b) Sulphur dioxide (c) Carbon monoxide (d) Carbon dioxide

Discussion

431.	Wearing many layers of cotton clothes will keep you as warm in winter as wearing a thick woollen sweater. Why? (HINT: Why does wool keep you warm?)
Answer» Wearing many layers of cotton clothes will keep you as warm in winter as wearing a thick woollen sweater. Why? (HINT: Why does wool keep you warm?)

Discussion

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

Discussion

433.	Explain the various processes involved in water cycle. [5 MARKS]
Answer» Explain the various processes involved in water cycle. [5 MARKS]

Discussion

434.	Why don’t stains erase when washed with water alone?
Answer» Why don’t stains erase when washed with water alone?

Discussion

435.	what are fibres
Answer» what are fibres

Discussion

436.	what are metals and from where did they occur
Answer» what are metals and from where did they occur

Discussion

437.	what is the order of melting and boiling points in the 13^{th} group
Answer» what is the order of melting and boiling points in the 13^{th} group

Discussion

438.	Question 7(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.
Answer» Question 7 (a) Define an opaque object. (b) List three or four objects that are made from an opaque material.

438.

Question 7(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.

Answer»

Question 7

(a) Define an opaque object.

(b) List three or four objects that are made from an opaque material.

Discussion

439.	Question 14Plastic articles are available in all possible shapes and sizes. Can you tell why?
Answer» Question 14 Plastic articles are available in all possible shapes and sizes. Can you tell why?

Discussion

440.	If air contains N2 and O2 in volume ratio 4:1, the average vapuor density of air is
Answer» If air contains N2 and O2 in volume ratio 4:1, the average vapuor density of air is

Discussion

441.	How to separate salt from iodine.
Answer» How to separate salt from iodine.

Discussion

442.	To become environment-friendly, instead of using polythene bags, we should use bags made up of:
Answer» To become environment-friendly, instead of using polythene bags, we should use bags made up of:

Discussion

443.	Sam wanted to purchase a yarn made of natural wool. However, he feels that the shopkeeper might fool him by giving him artificial woollen yarn instead of natural woollen yarn. Identify the fibre used in the artificial woollen yarn. Also, suggest an activity so that Sam is not fooled by the shopkeeper.
Answer» Sam wanted to purchase a yarn made of natural wool. However, he feels that the shopkeeper might fool him by giving him artificial woollen yarn instead of natural woollen yarn. Identify the fibre used in the artificial woollen yarn. Also, suggest an activity so that Sam is not fooled by the shopkeeper.

Discussion

444.	A synthetic fibre which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?
Answer» A synthetic fibre which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?

Discussion

445.	Particles of matter ___ each other.
Answer» Particles of matter ___ each other.

Discussion

446.	In which of the following processes, oxygen is consumed?
Answer» In which of the following processes, oxygen is consumed?

Discussion

447.	Question 4What is sublimation? Write the names of everyday substances that sublimate.
Answer» Question 4 What is sublimation? Write the names of everyday substances that sublimate.

447.

Question 4What is sublimation? Write the names of everyday substances that sublimate.

Answer»

Question 4

What is sublimation? Write the names of everyday substances that sublimate.

Discussion

448.	Question 18A bucket made of plastic does not rust like a bucket made of iron. Why?
Answer» Question 18 A bucket made of plastic does not rust like a bucket made of iron. Why?

Discussion

449.	cos²24°+cos²66°=?
Answer» cos²24°+cos²66°=?

Discussion

450.	we swept more in humid days wh
Answer» we swept more in humid days wh

Discussion

Explore topic-wise InterviewSolutions in .

Sometimes, when a person is caught with fire, a thick blanket is wrapped around him or her. This is done to

Difference between solute and solven

Is CHDT-OH a chiral compound??

You will probably agree that this story does not have breathless adventure and exciting action. Then what in your opinion makes it interesting?

Explain the difference between physical and chemical changes, giving one example of each.

Question 11Should the handle and bristles of a toothbrush be made of the same material? Explain your solution.

Statement I:- X enables everything to work. Statement II:- X follows the law of conservation. Statement III:- X moves from one body to other and it enables things to move, grow or interact. Identify "X" from the given options.

What is the key difference between heat and temperature?

What is a milk prouct obtained by gently heating butter?

Classify the given materials based on the property of lustre.Iron rod, gold coin, charcoal, wooden scale, copper wire, silver bar, sulphur powder, phosphorous powder, aluminium container.

POAC HOW TO APPLY

Give any three important uses of water.

Give two examples for each of the following:(a) metals(b) non-metals(c) metalloids

The cotton fibres are combed, straightened and converted into strands called?

Can we get back the wood after it is burnt? Why or why not? What kind of change is it?

Earth's surface has ____ percent of fresh water and ______ percent of saline water.

Sea water has salt dissolved in it. You know that pure water can be obtained from sea water by distillation. However, this method is not used to get drinking water from sea water. What do you think is teh reason?

Question 2The substance that will be flattened on beating with a hammer is(a) crystal of iodine(b) lump of sulphur(c) piece of coal(d) zinc granule

Fill in the blanks : (a) Air is a mixture of ……………. . (b) During the monsoons, ……………. is swirled through drinking water. (c) ……………. is a sublimating substance.

96 Define annealing and super cooling of glass.

Question 13 Locate the following zones given as boxed items in Figure 9.1 which shows a diagram of the soil profile. Topsoil, Subsoil, C−horizon, Bedrock

What is carboxylicacid

Question 4 (b)The process of separation of different constituents of petroleum is called ______.

What is the difference between melting point and boiling point

All the substances given below are examples of an _________.

Question 2 (f) State whether the following statement is true or false: Silk fibre is obtained from the stem of a plant.

In preparing tea, the tea leaves are filtered in order to:

What is istropy of space and tension in a string?? ?

Select the correct statement regarding filtration.

Question 6Incomplete combustion of fuel such as petrol and diesel gives(a) Nitrogen oxide(b) Sulphur dioxide(c) Carbon monoxide(d) Carbon dioxide

Wearing many layers of cotton clothes will keep you as warm in winter as wearing a thick woollen sweater. Why? (HINT: Why does wool keep you warm?)

Transpiration occurs from which part of the tree?

Explain the various processes involved in water cycle. [5 MARKS]

Why don’t stains erase when washed with water alone?

what are fibres

what are metals and from where did they occur

what is the order of melting and boiling points in the 13^{th} group

Question 7(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.

Question 14Plastic articles are available in all possible shapes and sizes. Can you tell why?

If air contains N2 and O2 in volume ratio 4:1, the average vapuor density of air is

How to separate salt from iodine.

To become environment-friendly, instead of using polythene bags, we should use bags made up of:

A synthetic fibre which looks like silk is obtained by chemical treatment of wood pulp. It is, therefore, known as artificial silk. What is its common name?

Particles of matter ___ each other.

In which of the following processes, oxygen is consumed?

Question 4What is sublimation? Write the names of everyday substances that sublimate.

Question 18A bucket made of plastic does not rust like a bucket made of iron. Why?

cos²24°+cos²66°=?

we swept more in humid days wh

Earth's surface has percent of fresh water and __ percent of saline water.