3275 + Interview Questions in Chemistry Page 20 InterviewSolution

951.	Entourez la bonne réponse.
Answer» Entourez la bonne réponse.

Discussion

952.	Explain the process of making yarn from fibre.
Answer» Explain the process of making yarn from fibre.

Discussion

953.	Arrange the jumbled words to arrive at the appropriate names of materials and also write two uses of eachA. milaunuimB. tcaslpiC. soekrneeD. gavnier
Answer» Arrange the jumbled words to arrive at the appropriate names of materials and also write two uses of each A. milaunuim B. tcaslpi C. soekrnee D. gavnier

Discussion

954.	John and Sam were soon joined by their common friend Kenneth. Kenneth got to know about the discussion John and Sam were having. He too wanted to share some of his knowledge about air and asked to join the conversation. Sam and John both welcomed him and started firing questions on him.Sam: Kenneth, do you know about the composition of air?Kenneth: Yes, I do! it is a mixture of gases, water vapour and dust particles.Sam: Fine, can you tell us its composition?Kenneth: Hmmm, I am not sure about that.Sam: Okay, just tell us the major components of air.So can you answer the last question that was asked to Kenneth?
Answer» John and Sam were soon joined by their common friend Kenneth. Kenneth got to know about the discussion John and Sam were having. He too wanted to share some of his knowledge about air and asked to join the conversation. Sam and John both welcomed him and started firing questions on him. Sam: Kenneth, do you know about the composition of air? Kenneth: Yes, I do! it is a mixture of gases, water vapour and dust particles. Sam: Fine, can you tell us its composition? Kenneth: Hmmm, I am not sure about that. Sam: Okay, just tell us the major components of air. So can you answer the last question that was asked to Kenneth?

954.

John and Sam were soon joined by their common friend Kenneth. Kenneth got to know about the discussion John and Sam were having. He too wanted to share some of his knowledge about air and asked to join the conversation. Sam and John both welcomed him and started firing questions on him.Sam: Kenneth, do you know about the composition of air?Kenneth: Yes, I do! it is a mixture of gases, water vapour and dust particles.Sam: Fine, can you tell us its composition?Kenneth: Hmmm, I am not sure about that.Sam: Okay, just tell us the major components of air.So can you answer the last question that was asked to Kenneth?

Answer»

John and Sam were soon joined by their common friend Kenneth. Kenneth got to know about the discussion John and Sam were having. He too wanted to share some of his knowledge about air and asked to join the conversation. Sam and John both welcomed him and started firing questions on him.

Sam: Kenneth, do you know about the composition of air?

Kenneth: Yes, I do! it is a mixture of gases, water vapour and dust particles.

Sam: Fine, can you tell us its composition?

Kenneth: Hmmm, I am not sure about that.

Sam: Okay, just tell us the major components of air.

So can you answer the last question that was asked to Kenneth?

Discussion

955.	Question 6 Rolling of chapatti and baking of chapatti are the changes that (a) can be reversed (b) cannot be reversed (c) can be reversed and cannot be reversed, respectively (d) cannot be reversed and can be reversed, respectively
Answer» Question 6 Rolling of chapatti and baking of chapatti are the changes that (a) can be reversed (b) cannot be reversed (c) can be reversed and cannot be reversed, respectively (d) cannot be reversed and can be reversed, respectively

955.

Question 6 Rolling of chapatti and baking of chapatti are the changes that (a) can be reversed (b) cannot be reversed (c) can be reversed and cannot be reversed, respectively (d) cannot be reversed and can be reversed, respectively

Answer»

Question 6

Rolling of chapatti and baking of chapatti are the changes that
(a) can be reversed
(b) cannot be reversed
(c) can be reversed and cannot be reversed, respectively
(d) cannot be reversed and can be reversed, respectively

Discussion

956.	Write the properties of these substances.Water, glass, chalk, iron ball, sugar, salt, flour, coal, soil, pen, ink, soap.
Answer» Write the properties of these substances. Water, glass, chalk, iron ball, sugar, salt, flour, coal, soil, pen, ink, soap.

Discussion

957.	What is Intensity
Answer» What is Intensity

Discussion

958.	Which among the following apparatus is most suitable to separate a mixture of two immiscible liquids?
Answer» Which among the following apparatus is most suitable to separate a mixture of two immiscible liquids?

Discussion

959.	(a) What can we conclude from burning of a candle with respect to physical and chemical changes? (b) Is cooking of rice a reversible change? [3 MARKS]
Answer» (a) What can we conclude from burning of a candle with respect to physical and chemical changes? (b) Is cooking of rice a reversible change? [3 MARKS]

Discussion

960.	What is aqua solution
Answer» What is aqua solution

Discussion

961.	What are the reasons of air pollution?
Answer» What are the reasons of air pollution?

Discussion

962.	Is it true that all the water that falls on the earth as rain, snow or hail ultimately goes into the oceans? Explain your answer.
Answer» Is it true that all the water that falls on the earth as rain, snow or hail ultimately goes into the oceans? Explain your answer.

Discussion

963.	Which of the following mixtures can be separated by sedimentation process?
Answer» Which of the following mixtures can be separated by sedimentation process?

Discussion

964.	Question 13 Name the chemicals which are used in refrigerators and air conditioners and damage ozone layer when released in the air.
Answer» Question 13 Name the chemicals which are used in refrigerators and air conditioners and damage ozone layer when released in the air.

Discussion

965.	10.A simple electric motor has armature resistance of 1ohms and runs from a DC source of 12V. It draws a current of 2A when unloaded. When a certain load is connected to it, its speed reduces by 10% of its initial value. The current drawn by the loaded motor is
Answer» 10.A simple electric motor has armature resistance of 1ohms and runs from a DC source of 12V. It draws a current of 2A when unloaded. When a certain load is connected to it, its speed reduces by 10% of its initial value. The current drawn by the loaded motor is

Discussion

966.	Which of the following is/are an exhaustible and non-renewable resource?
Answer» Which of the following is/are an exhaustible and non-renewable resource?

Discussion

967.	How can you separate a mixture of chalk powder and iron nails?
Answer» How can you separate a mixture of chalk powder and iron nails?

Discussion

968.	The below articles are made up of which synthetic fibre? Explain its characteristics. [2 MARKS]
Answer» The below articles are made up of which synthetic fibre? Explain its characteristics. [2 MARKS]

Discussion

969.	ntStandard free energies of formation at 298K are-237.2 ,394.4 and -8.2 for H20(l) ,CO2(g) and pentane (g) .The value of E^° cell for pentane oxygen is?n
Answer» ntStandard free energies of formation at 298K are-237.2 ,394.4 and -8.2 for H20(l) ,CO2(g) and pentane (g) .The value of E^° cell for pentane oxygen is?n

Discussion

970.	Why are objects at a distance seen more clearly after rain?
Answer» Why are objects at a distance seen more clearly after rain?

Discussion

971.	In the video"come on baby light my fire" hey used water to prevent oxygen but in Biology we have learn that water has oxygen mixed in it so why he has used water it would have also contain oxygen
Answer» In the video"come on baby light my fire" hey used water to prevent oxygen but in Biology we have learn that water has oxygen mixed in it so why he has used water it would have also contain oxygen

Discussion

972.	The removal of dust particle from rice is done by ______ .
Answer» The removal of dust particle from rice is done by ______ .

Discussion

973.	What are semi synthetic fibres?
Answer» What are semi synthetic fibres?

Discussion

974.	What is heat ? State its S.I. unit.
Answer» What is heat ? State its S.I. unit.

Discussion

975.	Out of the following options, which group of substances is made from the same material?
Answer» Out of the following options, which group of substances is made from the same material?

Discussion

976.	the relation between malleability and close packin
Answer» the relation between malleability and close packin

Discussion

977.	Fill in the blanks.(i) A polymer is a chain of many small units joined together which are called (ii) The synthetic fibres are also known as fibres. (iii) The first fully synthetic fibre was .(iv) A fibre similar to wool is .(v) A plastic used for making crockery is .
Answer» Fill in the blanks. (i) A polymer is a chain of many small units joined together which are called (ii) The synthetic fibres are also known as fibres. (iii) The first fully synthetic fibre was . (iv) A fibre similar to wool is . (v) A plastic used for making crockery is .

977.

Fill in the blanks.(i) A polymer is a chain of many small units joined together which are called (ii) The synthetic fibres are also known as fibres. (iii) The first fully synthetic fibre was .(iv) A fibre similar to wool is .(v) A plastic used for making crockery is .

Answer»

Fill in the blanks.

(i) A polymer is a chain of many small units joined together which are called

(ii) The synthetic fibres are also known as fibres.

(iii) The first fully synthetic fibre was .

(iv) A fibre similar to wool is .

(v) A plastic used for making crockery is .

Discussion

978.	Which of the following factors are responsible for soil formation?
Answer» Which of the following factors are responsible for soil formation?

Discussion

979.	Every change has a cause. True or false?
Answer» Every change has a cause. True or false?

Discussion

980.	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

981.	If one gm hydrogen is converted into 0.993 gm of helium in a thermonuclear reaction, the energy released in the reaction is(1) 63×10^7 J(2) 63×10^{10 }J(3) 63×10^{14} J(4) 63×10^{20
Answer» If one gm hydrogen is converted into 0.993 gm of helium in a thermonuclear reaction, the energy released in the reaction is(1) 63×10^7 J(2) 63×10^{10 }J(3) 63×10^{14} J(4) 63×10^{20

Discussion

982.	Which of these is/are true regarding atmosphere?
Answer» Which of these is/are true regarding atmosphere?

Discussion

983.	Excessive rainfall causes ______.
Answer» Excessive rainfall causes ______.

Discussion

984.	21 Hydrazine can be used in fuel cell N2H4+o2=n2+2h2o If Gfor this reaction is _600kj ,what will be the E for the cell? 1.25 1.50 1.57 1.75
Answer» 21 Hydrazine can be used in fuel cell N2H4+o2=n2+2h2o If Gfor this reaction is _600kj ,what will be the E for the cell? 1.25 1.50 1.57 1.75

Discussion

985.	Why is ice at 273 K more effective in cooling than water at the same temperature?
Answer» Why is ice at 273 K more effective in cooling than water at the same temperature?

Discussion

986.	Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.
Answer» Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.

Discussion

987.	A change may involve:
Answer» A change may involve:

Discussion

988.	From a square of uniform density, a portion is removved shown as shaded region in the figure. Find the centre of mass of the remaining portion if the side of square is a.
Answer» From a square of uniform density, a portion is removved shown as shaded region in the figure. Find the centre of mass of the remaining portion if the side of square is a.

Discussion

989.	How 360 is equal to 2pie
Answer» How 360 is equal to 2pie

Discussion

990.	Why is the use of jute and cotton bags being encouraged these days ?
Answer» Why is the use of jute and cotton bags being encouraged these days ?

Discussion

991.	what is corey-house reaction
Answer» what is corey-house reaction

Discussion

992.	How many images involve a chemical change?2
Answer» How many images involve a chemical change? 2

Discussion

993.	Write down the names of two temperature scales marked on the clinical thermometer.
Answer» Write down the names of two temperature scales marked on the clinical thermometer.

Discussion

994.	Out of the following options, which group of substances is made from the same material?
Answer» Out of the following options, which group of substances is made from the same material?

Discussion

995.	How do metals react to change in temperature? Explain with an example.
Answer» How do metals react to change in temperature? Explain with an example.

Discussion

996.	Question 4(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.
Answer» Question 4 (a) Define an opaque object. (b) List three or four objects that are made from an opaque material.

996.

Question 4(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.

Answer»

Question 4

(a) Define an opaque object.

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

Discussion

997.	_____________thread was developed simultaneously in New York and London.
Answer» _____________thread was developed simultaneously in New York and London.

Discussion

998.	A potter shapes pots out of clay. He then bakes the pots in an oven. Identify the reversible and irreversible changes taking plance in the process.
Answer» A potter shapes pots out of clay. He then bakes the pots in an oven. Identify the reversible and irreversible changes taking plance in the process.

Discussion

999.	Question 13 (d)___ is the change of matter from solid state directly to gaseous state without going through the liquid state.
Answer» Question 13 (d) ___ is the change of matter from solid state directly to gaseous state without going through the liquid state.

Discussion

1000.	Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?
Answer» Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?

Discussion

Explore topic-wise InterviewSolutions in .

Entourez la bonne réponse.

Explain the process of making yarn from fibre.​

Arrange the jumbled words to arrive at the appropriate names of materials and also write two uses of eachA. milaunuimB. tcaslpiC. soekrnee​D. gavnier​

Question 6 Rolling of chapatti and baking of chapatti are the changes that (a) can be reversed (b) cannot be reversed (c) can be reversed and cannot be reversed, respectively (d) cannot be reversed and can be reversed, respectively

Write the properties of these substances.Water, glass, chalk, iron ball, sugar, salt, flour, coal, soil, pen, ink, soap.

What is Intensity

Which among the following apparatus is most suitable to separate a mixture of two immiscible liquids?

(a) What can we conclude from burning of a candle with respect to physical and chemical changes? (b) Is cooking of rice a reversible change? [3 MARKS]

What is aqua solution

What are the reasons of air pollution?

Is it true that all the water that falls on the earth as rain, snow or hail ultimately goes into the oceans? Explain your answer.

Which of the following mixtures can be separated by sedimentation process?

Question 13 Name the chemicals which are used in refrigerators and air conditioners and damage ozone layer when released in the air.

10.A simple electric motor has armature resistance of 1ohms and runs from a DC source of 12V. It draws a current of 2A when unloaded. When a certain load is connected to it, its speed reduces by 10% of its initial value. The current drawn by the loaded motor is

Which of the following is/are an exhaustible and non-renewable resource?

How can you separate a mixture of chalk powder and iron nails?

The below articles are made up of which synthetic fibre? Explain its characteristics. [2 MARKS]

ntStandard free energies of formation at 298K are-237.2 ,394.4 and -8.2 for H20(l) ,CO2(g) and pentane (g) .The value of E^° cell for pentane oxygen is?n

Why are objects at a distance seen more clearly after rain?

In the video"come on baby light my fire" hey used water to prevent oxygen but in Biology we have learn that water has oxygen mixed in it so why he has used water it would have also contain oxygen

The removal of dust particle from rice is done by ______ .

What are semi synthetic fibres?

What is heat ? State its S.I. unit.

Out of the following options, which group of substances is made from the same material?

the relation between malleability and close packin

Fill in the blanks.​​(i) A polymer is a chain of many small units joined together which are called ​​(ii) The synthetic fibres are also known as fibres. ​(iii) The first fully synthetic fibre was .​(iv) A fibre similar to wool is .(v) A plastic used for making crockery is .

Which of the following factors are responsible for soil formation?

Every change has a cause. True or false?

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

If one gm hydrogen is converted into 0.993 gm of helium in a thermonuclear reaction, the energy released in the reaction is(1) 63×10^7 J(2) 63×10^{10 }J(3) 63×10^{14} J(4) 63×10^{20

Which of these is/are true regarding atmosphere?

Excessive rainfall causes ______.

21 Hydrazine can be used in fuel cell N2H4+o2=n2+2h2o If Gfor this reaction is _600kj ,what will be the E for the cell? 1.25 1.50 1.57 1.75

Why is ice at 273 K more effective in cooling than water at the same temperature?

Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.​

A change may involve:

From a square of uniform density, a portion is removved shown as shaded region in the figure. Find the centre of mass of the remaining portion if the side of square is a.

How 360 is equal to 2pie

Why is the use of jute and cotton bags being encouraged these days ?

what is corey-house reaction

How many images involve a chemical change?2

Write down the names of two temperature scales marked on the clinical thermometer.

Out of the following options, which group of substances is made from the same material?

How do metals react to change in temperature? Explain with an example.

Question 4(a) Define an opaque object.(b) List three or four objects that are made from an opaque material.

_____________thread was developed simultaneously in New York and London.

A potter shapes pots out of clay. He then bakes the pots in an oven. Identify the reversible and irreversible changes taking plance in the process.

Question 13 (d)___ is the change of matter from solid state directly to gaseous state without going through the liquid state.

Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?​

Explain the process of making yarn from fibre.

Arrange the jumbled words to arrive at the appropriate names of materials and also write two uses of eachA. milaunuimB. tcaslpiC. soekrneeD. gavnier

Fill in the blanks.(i) A polymer is a chain of many small units joined together which are called (ii) The synthetic fibres are also known as fibres. (iii) The first fully synthetic fibre was .(iv) A fibre similar to wool is .(v) A plastic used for making crockery is .

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

Chalk, iron nail, wood, aluminium, candle, cotton usually look different from each other. Give some properties by which we can prove that these materials are different.

Why do you think oxygen dissolved in water is important for the survival of aquatic animals and plants?