5083 + Interview Questions in Chemistry Page 90 InterviewSolution

4451.	Show that 1 kWh=3.6×106 J.
Answer» Show that $1 k W h = 3.6 \times 10^{6} J$ .

Discussion

4452.	Definition for valency
Answer» Definition for valency

Discussion

4453.	_______is the contamination of water which makes it unfit for human consumption.
Answer» _______is the contamination of water which makes it unfit for human consumption.

Discussion

4454.	Which of the following is the schedule of cooking?
Answer» Which of the following is the schedule of cooking?

Discussion

4455.	As we in increase the temperature, the kinetic energy of the particles _________.
Answer» As we in increase the temperature, the kinetic energy of the particles _________.

Discussion

4456.	Question 8 A solution changes the colour of turmeric indicator from yellow to red. The solution is (a) basic (b) acidic (c) neutral (d) either neutral or acidic
Answer» Question 8 A solution changes the colour of turmeric indicator from yellow to red. The solution is (a) basic (b) acidic (c) neutral (d) either neutral or acidic

4456.

Question 8 A solution changes the colour of turmeric indicator from yellow to red. The solution is (a) basic (b) acidic (c) neutral (d) either neutral or acidic

Answer»

Question 8

A solution changes the colour of turmeric indicator from yellow to red. The solution is
(a) basic
(b) acidic
(c) neutral
(d) either neutral or acidic

Discussion

4457.	Mass of an electron is about _____ times the relative mass of hydrogen atom.
Answer» Mass of an electron is about _____ times the relative mass of hydrogen atom.

Discussion

4458.	What are the occupational hazards faced by the workers in the wool industry? [3 MARKS]
Answer» What are the occupational hazards faced by the workers in the wool industry? [3 MARKS]

Discussion

4459.	Discuss the process of absorption of water by root hairs.
Answer» Discuss the process of absorption of water by root hairs.

Discussion

4460.	Consider the chemical reaction, N2(g)+3H2(g)→2NH3(g) The rate of this reaction can be expressed in terms of time derivatives of concentration of N2(g),H2(g) or NH3(g). Identify the correct relationship amongst the rate expressions.
Answer» Consider the chemical reaction, $N_{2} (g) + 3 H_{2} (g) \to 2 N H_{3} (g)$ The rate of this reaction can be expressed in terms of time derivatives of concentration of $N_{2} (g), H_{2} (g) o r N H_{3} (g)$ . Identify the correct relationship amongst the rate expressions.

Discussion

4461.	What is a 'Red Data Book'?
Answer» What is a 'Red Data Book'?

Discussion

4462.	The silk covering over silkworm is known as ___.
Answer» The silk covering over silkworm is known as ___.

Discussion

4463.	How many days can a person survive without water?
Answer» How many days can a person survive without water?

Discussion

4464.	Arrange the following in the order of their processing. [3 MARKS] yarn, fibres, fabric. Define and explain each.
Answer» Arrange the following in the order of their processing. [3 MARKS] yarn, fibres, fabric. Define and explain each.

Discussion

4465.	Which of the following property of acid is responsible for itching of skin?
Answer» Which of the following property of acid is responsible for itching of skin?

Discussion

4466.	An ideal gas is taken through a cycle of operations shown by the indicator diagram.
Answer» An ideal gas is taken through a cycle of operations shown by the indicator diagram.

4466.

An ideal gas is taken through a cycle of operations shown by the indicator diagram.

Answer»

An ideal gas is taken through a cycle of operations shown by the indicator diagram.

Discussion

4467.	Why is it necessary to wash our hands with soap after playing in the soil? Choose the most appropriate reason.
Answer» Why is it necessary to wash our hands with soap after playing in the soil? Choose the most appropriate reason.

Discussion

4468.	A pendulum has a time period of 1.5 s. So, it takes to complete 7 oscillations.
Answer» A pendulum has a time period of 1.5 s. So, it takes to complete 7 oscillations.

Discussion

4469.	Which of the following methods are used to prevent rusting of iron?
Answer» Which of the following methods are used to prevent rusting of iron?

Discussion

4470.	A change cannot be
Answer» A change cannot be

Discussion

4471.	If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to ___ of copper.
Answer» If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to ___ of copper.

Discussion

4472.	Which of the following metal is used in the figure given below?
Answer» Which of the following metal is used in the figure given below?

4472.

Which of the following metal is used in the figure given below?

Answer»

Which of the following metal is used in the figure given below?

Discussion

4473.	What type of change is writing on paper?
Answer» What type of change is writing on paper?

Discussion

4474.	An interceptor is used to divert the flow of wastewater away from
Answer» An interceptor is used to divert the flow of wastewater away from

Discussion

4475.	The catalyst present in the decomposition of hydrogen peroxide is ferrous sulphate or phosphoric acid or both?
Answer» The catalyst present in the decomposition of hydrogen peroxide is ferrous sulphate or phosphoric acid or both?

Discussion

4476.	What is the percentage of carbon dioxide in the atmosphere?
Answer» What is the percentage of carbon dioxide in the atmosphere?

Discussion

4477.	Which of the following factors directly affect the soil of a particular place or region?
Answer» Which of the following factors directly affect the soil of a particular place or region?

Discussion

4478.	A drug which reduces high blood pressure is obtained from
Answer» A drug which reduces high blood pressure is obtained from

Discussion

4479.	Shreya's father got a transfer from Lucknow to Goa. When Shreya started living in goa she observed that all her bangles made up of metals were getting a layer of brown coating. It is due to which of the following?
Answer» Shreya's father got a transfer from Lucknow to Goa. When Shreya started living in goa she observed that all her bangles made up of metals were getting a layer of brown coating. It is due to which of the following?

Discussion

4480.	Which of the following is incorrect with respect to metals?
Answer» Which of the following is incorrect with respect to metals?

Discussion

4481.	Silk worms are fed on which of the following leaves to help them grow cocoons?
Answer» Silk worms are fed on which of the following leaves to help them grow cocoons?

Discussion

4482.	The reaction between silver nitrate and sodium chloride is an example of a ______ reaction.
Answer» The reaction between silver nitrate and sodium chloride is an example of a ______ reaction.

Discussion

4483.	The temperature at which liquid starts boiling at atmospheric pressure is known as its ___
Answer» The temperature at which liquid starts boiling at atmospheric pressure is known as its ___

Discussion

4484.	Plant species are more vulnerable to extinction than animals because:
Answer» Plant species are more vulnerable to extinction than animals because:

Discussion

4485.	What is the aim of 'Project Tiger' programme?
Answer» What is the aim of 'Project Tiger' programme?

Discussion

4486.	Silkworms are ____ of the silkmoth.
Answer» Silkworms are ____ of the silkmoth.

Discussion

4487.	Which of the following methods is used for separating stones from grains
Answer» Which of the following methods is used for separating stones from grains

Discussion

4488.	Question 25 Water is very precious for all the living beings. What will happen in future if we do not save water now?
Answer» Question 25 Water is very precious for all the living beings. What will happen in future if we do not save water now?

4488.

Question 25 Water is very precious for all the living beings. What will happen in future if we do not save water now?

Answer»

Question 25

Water is very precious for all the living beings. What will happen in future if we do not save water now?

Discussion

4489.	The reaction in which a single product breaks down to give simpler products is called ___ reaction.
Answer» The reaction in which a single product breaks down to give simpler products is called ___ reaction.

Discussion

4490.	What is the difference between an atom and an element
Answer» What is the difference between an atom and an element

Discussion

4491.	What do we call the hard silk cover around silk worm?
Answer» What do we call the hard silk cover around silk worm?

Discussion

4492.	Which of the following are correct with respect to stability of an atom?
Answer» Which of the following are correct with respect to stability of an atom?

Discussion

4493.	When does a fire produce smoke?
Answer» When does a fire produce smoke?

Discussion

4494.	Is this a pure substance or mixture?
Answer» Is this a pure substance or mixture?

4494.

Is this a pure substance or mixture?

Answer»

Is this a pure substance or mixture?

Discussion

4495.	Rehan filters out tea leaves from the prepared tea with a strainer. The separation technique he used is _______.
Answer» Rehan filters out tea leaves from the prepared tea with a strainer. The separation technique he used is _______.

Discussion

4496.	What are the conventional methods used for the purification of water? [2 MARKS]
Answer» What are the conventional methods used for the purification of water? [2 MARKS]

Discussion

4497.	___ is formed when CaO(quick lime) reacts with water.
Answer» ___ is formed when CaO(quick lime) reacts with water.

Discussion

4498.	Which of the following groups contain only biodegradable items? 1. Glass, flowers and leather 2. Grass, wood and plastic 3. Fruit-peels, cake and lime-juice 4. Cake, wood and grass
Answer» Which of the following groups contain only biodegradable items? 1. Glass, flowers and leather 2. Grass, wood and plastic 3. Fruit-peels, cake and lime-juice 4. Cake, wood and grass

Discussion

4499.	Temporary hardness of water can be removed by
Answer» Temporary hardness of water can be removed by

4499.

Temporary hardness of water can be removed by

Answer»

Temporary hardness of water can be removed by

Discussion

4500.	Which of the statements about the reaction below are incorrect? 2PbO(s)+C(s)→2Pb(s)+CO2(g) (a) Lead is getting reduced (b) Carbon dioxide is getting oxidized (c) Carbon is getting oxidized (d) Lead oxide is getting reduced
Answer» Which of the statements about the reaction below are incorrect? $2 P b O (s) + C (s) \to 2 P b (s) + C O_{2} (g)$ (a) Lead is getting reduced (b) Carbon dioxide is getting oxidized (c) Carbon is getting oxidized (d) Lead oxide is getting reduced

Discussion

Explore topic-wise InterviewSolutions in .

Show that 1 kWh=3.6×106 J.

Definition for valency

_______is the contamination of water which makes it unfit for human consumption.

Which of the following is the schedule of cooking?

As we in increase the temperature, the kinetic energy of the particles _________.

Question 8 A solution changes the colour of turmeric indicator from yellow to red. The solution is (a) basic (b) acidic (c) neutral (d) either neutral or acidic

Mass of an electron is about _____ times the relative mass of hydrogen atom.

What are the occupational hazards faced by the workers in the wool industry? [3 MARKS]

Discuss the process of absorption of water by root hairs.

Consider the chemical reaction, N2(g)+3H2(g)→2NH3(g) The rate of this reaction can be expressed in terms of time derivatives of concentration of N2(g),H2(g) or NH3(g). Identify the correct relationship amongst the rate expressions.

What is a 'Red Data Book'?

The silk covering over silkworm is known as ___.

How many days can a person survive without water?

Arrange the following in the order of their processing. [3 MARKS] yarn, fibres, fabric. Define and explain each.

Which of the following property of acid is responsible for itching of skin?

An ideal gas is taken through a cycle of operations shown by the indicator diagram.

Why is it necessary to wash our hands with soap after playing in the soil? Choose the most appropriate reason.

A pendulum has a time period of 1.5 s. So, it takes to complete 7 oscillations.

Which of the following methods are used to prevent rusting of iron?

A change cannot be

If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to ___ of copper.

Which of the following metal is used in the figure given below?

What type of change is writing on paper?

An interceptor is used to divert the flow of wastewater away from

The catalyst present in the decomposition of hydrogen peroxide is ferrous sulphate or phosphoric acid or both?

What is the percentage of carbon dioxide in the atmosphere?

Which of the following factors directly affect the soil of a particular place or region?

A drug which reduces high blood pressure is obtained from

Shreya's father got a transfer from Lucknow to Goa. When Shreya started living in goa she observed that all her bangles made up of metals were getting a layer of brown coating. It is due to which of the following?

Which of the following is incorrect with respect to metals?

Silk worms are fed on which of the following leaves to help them grow cocoons?

The reaction between silver nitrate and sodium chloride is an example of a ______ reaction.

The temperature at which liquid starts boiling at atmospheric pressure is known as its ___

Plant species are more vulnerable to extinction than animals because:

What is the aim of 'Project Tiger' programme?

Silkworms are ____ of the silkmoth.

Which of the following methods is used for separating stones from grains

Question 25 Water is very precious for all the living beings. What will happen in future if we do not save water now?

The reaction in which a single product breaks down to give simpler products is called ___ reaction.

What is the difference between an atom and an element

What do we call the hard silk cover around silk worm?

Which of the following are correct with respect to stability of an atom?

When does a fire produce smoke?

Is this a pure substance or mixture?

Rehan filters out tea leaves from the prepared tea with a strainer. The separation technique he used is _______.

What are the conventional methods used for the purification of water? [2 MARKS]

___ is formed when CaO(quick lime) reacts with water.

Which of the following groups contain only biodegradable items? 1. Glass, flowers and leather 2. Grass, wood and plastic 3. Fruit-peels, cake and lime-juice 4. Cake, wood and grass

Temporary hardness of water can be removed by

Which of the statements about the reaction below are incorrect? 2PbO(s)+C(s)→2Pb(s)+CO2(g) (a) Lead is getting reduced (b) Carbon dioxide is getting oxidized (c) Carbon is getting oxidized (d) Lead oxide is getting reduced