5083 + Interview Questions in Chemistry

1.	Question 23 You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature of each solution
Answer» Question 23 You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature of each solution

1.

Question 23 You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature of each solution

Answer»

Question 23

You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature of each solution

Discussion

2.	Question 03 Match the items given in Column A with that in Column B Column AColumn BMilk, curd, paneer, gheeEat other animalsSpinach, cauliflower, carrotEat plants and plant productsLions and tigersare vegetablesHerbivoresare all animal products
Answer» Question 03 Match the items given in Column A with that in Column B $\begin{matrix} C o l u m n A & C o l u m n B M i l k, c u r d, p a n e e r, g h e e & E a t o t h e r a n i m a l s S p i n a c h, c a u l i f l o w e r, c a r r o t & E a t p l a n t s a n d p l a n t p r o d u c t s L i o n s a n d t i g e r s & a r e v e g e t a b l e s H e r b i v o r e s & a r e a l l a n i m a l p r o d u c t s \end{matrix}$

2.

Question 03 Match the items given in Column A with that in Column B Column AColumn BMilk, curd, paneer, gheeEat other animalsSpinach, cauliflower, carrotEat plants and plant productsLions and tigersare vegetablesHerbivoresare all animal products

Answer»

Question 03

Match the items given in Column A with that in Column B
$\begin{matrix} C o l u m n A & C o l u m n B M i l k, c u r d, p a n e e r, g h e e & E a t o t h e r a n i m a l s S p i n a c h, c a u l i f l o w e r, c a r r o t & E a t p l a n t s a n d p l a n t p r o d u c t s L i o n s a n d t i g e r s & a r e v e g e t a b l e s H e r b i v o r e s & a r e a l l a n i m a l p r o d u c t s \end{matrix}$

Discussion

3.	Give two reasons why is it not possible to see an atom with our naked eyes? [2 MARKS]
Answer» Give two reasons why is it not possible to see an atom with our naked eyes? [2 MARKS]

Discussion

4.	Which among the following methods is most suitable to separate a mixture of salt and ammonium chloride?
Answer» Which among the following methods is most suitable to separate a mixture of salt and ammonium chloride?

Discussion

5.	Untreated sewage contaminates Ganga because:
Answer» Untreated sewage contaminates Ganga because:

Discussion

6.	A substance which has very low ignition temperature and can easily catch fire with a flame is called _________.
Answer» A substance which has very low ignition temperature and can easily catch fire with a flame is called _________.

Discussion

7.	Two substances A and substance B when brought together forms a substance C with liberation of heat .the properties of C are entirely different from those of A and B. What is substance C ? a) metal B) element C) compound D) mixture
Answer» Two substances A and substance B when brought together forms a substance C with liberation of heat .the properties of C are entirely different from those of A and B. What is substance C ? a) metal B) element C) compound D) mixture

Discussion

8.	Which of the following quantity does not always expand on heating?
Answer» Which of the following quantity does not always expand on heating?

Discussion

9.	Does ozone absorb UV radiations and break s down into oxygen?
Answer» Does ozone absorb UV radiations and break s down into oxygen?

Discussion

10.	Select the materials that clog drains:
Answer» Select the materials that clog drains:

Discussion

11.	Match the following: (i)Water(A)Compound(ii)Hydrogen(B)Element(iii)Salt(iv)Gold(v)Carbon dioxide(vi)Iron The correct pairs are:-
Answer» Match the following: $\begin{matrix} (i) & Water & (A) & Compound (ii) & Hydrogen & (B) & Element (iii) & Salt (iv) & Gold (v) & Carbon dioxide (vi) & Iron \end{matrix}$ The correct pairs are:-

11.

Match the following: (i)Water(A)Compound(ii)Hydrogen(B)Element(iii)Salt(iv)Gold(v)Carbon dioxide(vi)Iron The correct pairs are:-

Answer»

Match the following:

$\begin{matrix} (i) & Water & (A) & Compound (ii) & Hydrogen & (B) & Element (iii) & Salt (iv) & Gold (v) & Carbon dioxide (vi) & Iron \end{matrix}$
The correct pairs are:-

Discussion

12.	During a chemical reaction, if the products have more chemical energy than the reactants,
Answer» During a chemical reaction, if the products have more chemical energy than the reactants,

Discussion

13.	Which among the following is not used to spin thread from fibres?
Answer» Which among the following is not used to spin thread from fibres?

Discussion

14.	Classify acids. [3 MARKS]
Answer» Classify acids. [3 MARKS]

Discussion

15.	explain the ways by which we can prevent soil erosion and pollution
Answer» explain the ways by which we can prevent soil erosion and pollution

Discussion

16.	A particular region in some state of India is observing a constant decrease in the water table. Identify the most probable reason for the same.
Answer» A particular region in some state of India is observing a constant decrease in the water table. Identify the most probable reason for the same.

Discussion

17.	Why is sloping ground not preferred for growing lentils? Which type of soil is best suited for growing lentils? Why? [3 MARKS]
Answer» Why is sloping ground not preferred for growing lentils? Which type of soil is best suited for growing lentils? Why? [3 MARKS]

Discussion

18.	Why is sodium stored in kerosene oil?
Answer» Why is sodium stored in kerosene oil?

Discussion

19.	Question 4 Describe the steps involved in getting clarified water from wastewater.
Answer» Question 4 Describe the steps involved in getting clarified water from wastewater.

Discussion

20.	Which of the following are the properties of the natural gas?
Answer» Which of the following are the properties of the natural gas?

Discussion

21.	Law of definite proportions is given by:
Answer» Law of definite proportions is given by:

Discussion

22.	Why do you think nurdles are extremely dangerous when present in wastewater?
Answer» Why do you think nurdles are extremely dangerous when present in wastewater?

Discussion

23.	When zeolite is treated with hard water, the sodium ions are exchanged with:
Answer» When zeolite is treated with hard water, the sodium ions are exchanged with:

23.

When zeolite is treated with hard water, the sodium ions are exchanged with:

Answer»

When zeolite is treated with hard water, the sodium ions are exchanged with:

Discussion

24.	What are the area that are affected by water scarcity in 2015 , 2016 & 2017
Answer» What are the area that are affected by water scarcity in 2015 , 2016 & 2017

Discussion

25.	What are artificial fibres mostly used in and why
Answer» What are artificial fibres mostly used in and why

Discussion

26.	The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as ______________
Answer» The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as ______________

Discussion

27.	The activation energy for a reaction at the temperature TK was found to be 2.303 RTJmol−1. The ratio of the rate constant to Arrhenius factor is ___
Answer» The activation energy for a reaction at the temperature TK was found to be 2.303 $R T J m o l^{- 1}$ . The ratio of the rate constant to Arrhenius factor is ___

Discussion

28.	Write down the various physical process that takes place in the water cycle?
Answer» Write down the various physical process that takes place in the water cycle?

Discussion

29.	Identify the chemical change.
Answer» Identify the chemical change.

Discussion

30.	The process in which caterpillars turn into butterflies is called ___.
Answer» The process in which caterpillars turn into butterflies is called ___.

Discussion

31.	Basic radicals have _____ charge and are also called as _____.
Answer» Basic radicals have _____ charge and are also called as _____.

Discussion

32.	This is year 348 BC. Aristotle is a famous Greek philosopher and scientist. One day he suddenly wakes up into the future - The year 2017. He observes that the world has changed a lot. Out of the following observations made by him, which observations are examples of change?
Answer» This is year 348 BC. Aristotle is a famous Greek philosopher and scientist. One day he suddenly wakes up into the future - The year 2017. He observes that the world has changed a lot. Out of the following observations made by him, which observations are examples of change?

Discussion

33.	Is the salt found in Sea water also a derivative of a reaction between acids and bases ?
Answer» Is the salt found in Sea water also a derivative of a reaction between acids and bases ?

Discussion

34.	Which gas is put in the bubble sheet?
Answer» Which gas is put in the bubble sheet?

Discussion

35.	The electron in a hydrogen atom makes transition from M shell to L. The ratio of magnitudes of initial to final centripetal acceleration of the electron is
Answer» The electron in a hydrogen atom makes transition from M shell to L. The ratio of magnitudes of initial to final centripetal acceleration of the electron is

Discussion

36.	An iron rod is heated. Which of the following statements is incorrect?
Answer» An iron rod is heated. Which of the following statements is incorrect?

Discussion

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

Discussion

38.	How can you prevent ground water depletion?
Answer» How can you prevent ground water depletion?

Discussion

39.	Can a mixture of Salt and Sand can be homogeneous mixture? Why? Why not?
Answer» Can a mixture of Salt and Sand can be homogeneous mixture? Why? Why not?

Discussion

40.	Which are the methods used for prevention of corrosion?
Answer» Which are the methods used for prevention of corrosion?

Discussion

41.	Weight and mass are _____.
Answer» Weight and mass are _____.

Discussion

42.	can salt be acidic , basic or neutral ?
Answer» can salt be acidic , basic or neutral ?

Discussion

43.	When water is frozen it forms ice that has different properties.Why then do we say that freezing is a physical change?
Answer» When water is frozen it forms ice that has different properties.Why then do we say that freezing is a physical change?

Discussion

44.	The word ___ comes from the Latin word 'acere' which means sour.
Answer» The word ___ comes from the Latin word 'acere' which means sour.

Discussion

45.	Four students have their own opinion about reversible and irreversible changes. Who among the following is correct? Rohan: Both physical and chemical changes are reversible. Sam: Both physical and chemical changes are irreversible. Tom: Physical changes are irreversible and chemical changes are reversible. Riah: Chemical changes are irreversible and physical changes are reversible
Answer» Four students have their own opinion about reversible and irreversible changes. Who among the following is correct? Rohan: Both physical and chemical changes are reversible. Sam: Both physical and chemical changes are irreversible. Tom: Physical changes are irreversible and chemical changes are reversible. Riah: Chemical changes are irreversible and physical changes are reversible

45.

Four students have their own opinion about reversible and irreversible changes. Who among the following is correct? Rohan: Both physical and chemical changes are reversible. Sam: Both physical and chemical changes are irreversible. Tom: Physical changes are irreversible and chemical changes are reversible. Riah: Chemical changes are irreversible and physical changes are reversible

Answer»

Four students have their own opinion about reversible and irreversible changes. Who among the following is correct?

Rohan: Both physical and chemical changes are reversible.

Sam: Both physical and chemical changes are irreversible.

Tom: Physical changes are irreversible and chemical changes are reversible.

Riah: Chemical changes are irreversible and physical changes are reversible

Discussion

46.	Which one of the following represents carbon dioxide?
Answer» Which one of the following represents carbon dioxide?

Discussion

47.	A decomposition reaction is generally represented as_______ .
Answer» A decomposition reaction is generally represented as_______ .

Discussion

48.	Question 4 (ii) What is meant by the following terms? (ii) Shearing
Answer» Question 4 (ii) What is meant by the following terms? (ii) Shearing

Discussion

49.	Question 6 Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability? (a) It is more than 7 m high (b) It weighs about 6000 kg (c) It was built more than 1600 yrs ago (d) It has no rust after such long period
Answer» Question 6 Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability? (a) It is more than 7 m high (b) It weighs about 6000 kg (c) It was built more than 1600 yrs ago (d) It has no rust after such long period

49.

Question 6 Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability? (a) It is more than 7 m high (b) It weighs about 6000 kg (c) It was built more than 1600 yrs ago (d) It has no rust after such long period

Answer»

Question 6

Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?
(a) It is more than 7 m high
(b) It weighs about 6000 kg
(c) It was built more than 1600 yrs ago
(d) It has no rust after such long period

Discussion

50.	Question 8 (a) Explain why: (a) An antacid tablet is taken when you suffer from acidity.
Answer» Question 8 (a) Explain why: (a) An antacid tablet is taken when you suffer from acidity.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Question 23 You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature of each solution

Question 03 Match the items given in Column A with that in Column B Column AColumn BMilk, curd, paneer, gheeEat other animalsSpinach, cauliflower, carrotEat plants and plant productsLions and tigersare vegetablesHerbivoresare all animal products

Give two reasons why is it not possible to see an atom with our naked eyes? [2 MARKS]

Which among the following methods is most suitable to separate a mixture of salt and ammonium chloride?

Untreated sewage contaminates Ganga because:

A substance which has very low ignition temperature and can easily catch fire with a flame is called _________.

Two substances A and substance B when brought together forms a substance C with liberation of heat .the properties of C are entirely different from those of A and B. What is substance C ? a) metal B) element C) compound D) mixture

Which of the following quantity does not always expand on heating?

Does ozone absorb UV radiations and break s down into oxygen?

Select the materials that clog drains:

Match the following: (i)Water(A)Compound(ii)Hydrogen(B)Element(iii)Salt(iv)Gold(v)Carbon dioxide(vi)Iron The correct pairs are:-

During a chemical reaction, if the products have more chemical energy than the reactants,

Which among the following is not used to spin thread from fibres?

Classify acids. [3 MARKS]

explain the ways by which we can prevent soil erosion and pollution

A particular region in some state of India is observing a constant decrease in the water table. Identify the most probable reason for the same.

Why is sloping ground not preferred for growing lentils? Which type of soil is best suited for growing lentils? Why? [3 MARKS]

Why is sodium stored in kerosene oil?

Question 4 Describe the steps involved in getting clarified water from wastewater.

Which of the following are the properties of the natural gas?

Law of definite proportions is given by:

Why do you think nurdles are extremely dangerous when present in wastewater?

When zeolite is treated with hard water, the sodium ions are exchanged with:

What are the area that are affected by water scarcity in 2015 , 2016 & 2017

What are artificial fibres mostly used in and why

The amount of heat energy required to change 1 kg of solid into liquid at its melting point is known as ______________

The activation energy for a reaction at the temperature TK was found to be 2.303 RTJmol−1. The ratio of the rate constant to Arrhenius factor is ___

Write down the various physical process that takes place in the water cycle?

Identify the chemical change.

The process in which caterpillars turn into butterflies is called ___.

Basic radicals have _____ charge and are also called as _____.

This is year 348 BC. Aristotle is a famous Greek philosopher and scientist. One day he suddenly wakes up into the future - The year 2017. He observes that the world has changed a lot. Out of the following observations made by him, which observations are examples of change?

Is the salt found in Sea water also a derivative of a reaction between acids and bases ?

Which gas is put in the bubble sheet?

The electron in a hydrogen atom makes transition from M shell to L. The ratio of magnitudes of initial to final centripetal acceleration of the electron is

An iron rod is heated. Which of the following statements is incorrect?

What is the charge of Mg in MgCl2?

How can you prevent ground water depletion?

Can a mixture of Salt and Sand can be homogeneous mixture? Why? Why not?

Which are the methods used for prevention of corrosion?

Weight and mass are _____.

can salt be acidic , basic or neutral ?

When water is frozen it forms ice that has different properties.Why then do we say that freezing is a physical change?

The word ___ comes from the Latin word 'acere' which means sour.

Which one of the following represents carbon dioxide?

A decomposition reaction is generally represented as_______ .

Question 4 (ii) What is meant by the following terms? (ii) Shearing

Question 6 Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability? (a) It is more than 7 m high (b) It weighs about 6000 kg (c) It was built more than 1600 yrs ago (d) It has no rust after such long period

Question 8 (a) Explain why: (a) An antacid tablet is taken when you suffer from acidity.

Basic radicals have _ charge and are also called as _.