5083 + Interview Questions in Chemistry Page 96 InterviewSolution

4751.	What is the valency of carbon in CH4?
Answer» What is the valency of carbon in $C H_{4}$ ?

Discussion

4752.	When matter is divided into smaller and smaller particles, ultimately a stage is reached where the particles cannot be divided further into smaller particles. These tiny particles are called ___.
Answer» When matter is divided into smaller and smaller particles, ultimately a stage is reached where the particles cannot be divided further into smaller particles. These tiny particles are called ___.

Discussion

4753.	What is the second step to balance a chemical equation?
Answer» What is the second step to balance a chemical equation?

Discussion

4754.	Name three characteristics of metals and non-metals
Answer» Name three characteristics of metals and non-metals

Discussion

4755.	Explain why? a)Calamine solution is applied on the skin when an ant bits. b)Factory waste is neutralized before disposing it into water bodies. [5 MARKS]
Answer» Explain why? a)Calamine solution is applied on the skin when an ant bits. b)Factory waste is neutralized before disposing it into water bodies. [5 MARKS]

Discussion

4756.	What is a clay? Can it be called a solid?
Answer» What is a clay? Can it be called a solid?

Discussion

4757.	SI and CGS unit of force
Answer» SI and CGS unit of force

Discussion

4758.	Identify the source that constitutes majority of the water available on the Earth.
Answer» Identify the source that constitutes majority of the water available on the Earth.

Discussion

4759.	Question 10 Which of the following inhibits the seepage of rainwater into the ground? (a) A pukka floor (b) Playground (c) Grass Lawn (d) Forest land
Answer» Question 10 Which of the following inhibits the seepage of rainwater into the ground? (a) A pukka floor (b) Playground (c) Grass Lawn (d) Forest land

4759.

Question 10 Which of the following inhibits the seepage of rainwater into the ground? (a) A pukka floor (b) Playground (c) Grass Lawn (d) Forest land

Answer»

Question 10

Which of the following inhibits the seepage of rainwater into the ground?
(a) A pukka floor
(b) Playground
(c) Grass Lawn
(d) Forest land

Discussion

4760.	What were the limitations of Newland’s Law of Octaves? [3 MARKS]
Answer» What were the limitations of Newland’s Law of Octaves? [3 MARKS]

Discussion

4761.	Can we write Sodium Hydrogen Carbonate as Sodium Bicarbonate?
Answer» Can we write Sodium Hydrogen Carbonate as Sodium Bicarbonate?

Discussion

4762.	Which of the following is an antibiotic which cures bacterial infections?
Answer» Which of the following is an antibiotic which cures bacterial infections?

Discussion

4763.	What is an universal indicator?
Answer» What is an universal indicator?

Discussion

4764.	What is difference 15N2 and 6O2 in terms of what they represent?
Answer» What is difference 15N2 and 6O2 in terms of what they represent?

Discussion

4765.	(a) Condensation of steam is not a chemical change. Explain. (b) If two liquids are immiscible, which of the two liquids will be at the bottom if they are taken together in a container? [2 MARKS]
Answer» (a) Condensation of steam is not a chemical change. Explain. (b) If two liquids are immiscible, which of the two liquids will be at the bottom if they are taken together in a container? [2 MARKS]

Discussion

4766.	Can an insect-pollinated flowers be wind-pollinated?
Answer» Can an insect-pollinated flowers be wind-pollinated?

Discussion

4767.	Why lime is added during coagulation step of water treatment?
Answer» Why lime is added during coagulation step of water treatment?

Discussion

4768.	Isobars differ in ______.
Answer» Isobars differ in ______.

Discussion

4769.	You have hydrochloric acid in a beaker and you want to perform the experiment of neutralization, so which among the following will you use?
Answer» You have hydrochloric acid in a beaker and you want to perform the experiment of neutralization, so which among the following will you use?

Discussion

4770.	Which of the following option(s) is/are correct with respect to the figure given below?
Answer» Which of the following option(s) is/are correct with respect to the figure given below?

4770.

Which of the following option(s) is/are correct with respect to the figure given below?

Answer»

Which of the following option(s) is/are correct with respect to the figure given below?

Discussion

4771.	Elements are made up of atoms. But why we say elements are indivisible?. Accoriding to dalton's theory atoms are the smallest unit of matter
Answer» Elements are made up of atoms. But why we say elements are indivisible?. Accoriding to dalton's theory atoms are the smallest unit of matter

Discussion

4772.	Find the correct sequence of processes used for purification of water.
Answer» Find the correct sequence of processes used for purification of water.

Discussion

4773.	Are food cans actually made of iron? If yes, why don't they get corroded? [3 MARKS]
Answer» Are food cans actually made of iron? If yes, why don't they get corroded? [3 MARKS]

Discussion

4774.	From what source do we obtain litmus solution? [2 MARKS]
Answer» From what source do we obtain litmus solution? [2 MARKS]

Discussion

4775.	Observe the image above and conclude what kind of a change is playing clay undergoing when it is moulded into a caterpillar?
Answer» Observe the image above and conclude what kind of a change is playing clay undergoing when it is moulded into a caterpillar?

Discussion

4776.	Identify the general representation of a combination reaction.
Answer» Identify the general representation of a combination reaction.

Discussion

4777.	Match the following and choose the correct option: i. A - horizon a. Small lumps of rocks ii. B - horizon b. Hard layer which is difficult to dig iii. C - horizon c. Dark in colour and rich in humus iv. Bedrock d. Less humus and more minerals, compact
Answer» Match the following and choose the correct option: i. A - horizon a. Small lumps of rocks ii. B - horizon b. Hard layer which is difficult to dig iii. C - horizon c. Dark in colour and rich in humus iv. Bedrock d. Less humus and more minerals, compact

4777.

Match the following and choose the correct option: i. A - horizon a. Small lumps of rocks ii. B - horizon b. Hard layer which is difficult to dig iii. C - horizon c. Dark in colour and rich in humus iv. Bedrock d. Less humus and more minerals, compact

Answer»

Match the following and choose the correct option:

i. A - horizon a. Small lumps of rocks

ii. B - horizon b. Hard layer which is difficult to dig

iii. C - horizon c. Dark in colour and rich in humus

iv. Bedrock d. Less humus and more minerals, compact

Discussion

4778.	The rise and fall of sea waves is an example of_______.
Answer» The rise and fall of sea waves is an example of_______.

Discussion

4779.	What are physical change and chemical change give two example?
Answer» What are physical change and chemical change give two example?

Discussion

4780.	Which of the following isn't direct a source of fresh water?
Answer» Which of the following isn't direct a source of fresh water?

Discussion

4781.	The force of attraction between the polar molecules having permanent dipole and the molecules lacking permanent dipole is
Answer» The force of attraction between the polar molecules having permanent dipole and the molecules lacking permanent dipole is

Discussion

4782.	A lending library has a fixed charge for the first two days and an additional charge for each day thereafter. Sunil paid Rs 28 for a book kept for seven days, while Sohail paid Rs 32 for the book he kept for nine days. Find the charge for each extra day.
Answer» A lending library has a fixed charge for the first two days and an additional charge for each day thereafter. Sunil paid Rs 28 for a book kept for seven days, while Sohail paid Rs 32 for the book he kept for nine days. Find the charge for each extra day.

Discussion

4783.	Name the change involved in boiling water to make pasta.
Answer» Name the change involved in boiling water to make pasta.

Discussion

4784.	A lead storage battery containing 5.0L of H2SO4 solution is operated for 9.65×105s with a steady current of 100 mA. Assuming volume of the solution remains constant, normality of H2SO4 will :
Answer» A lead storage battery containing 5.0L of $H_{2} S O_{4}$ solution is operated for $9.65 \times 10^{5} s$ with a steady current of 100 mA. Assuming volume of the solution remains constant, normality of $H_{2} S O_{4}$ will :

Discussion

4785.	Which of the following is not the possible path followed by cathode rays ejecting from the surface of a cathode?
Answer» Which of the following is not the possible path followed by cathode rays ejecting from the surface of a cathode?

Discussion

4786.	Under the same reaction conditions, the initial concentration of 1.386 mol dm−3 of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively. The ratio (k1/k0) of the rate constants for first order (k1) and zero order (k0)of the reaction is
Answer» Under the same reaction conditions, the initial concentration of 1.386 mol $d m^{- 3}$ of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively. The ratio $(k_{1} / k_{0}$ ) of the rate constants for first order $(k_{1})$ and zero order $(k_{0})$ of the reaction is

4786.

Under the same reaction conditions, the initial concentration of 1.386 mol dm−3 of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively. The ratio (k1/k0) of the rate constants for first order (k1) and zero order (k0)of the reaction is

Answer»

Under the same reaction conditions, the initial concentration of 1.386 mol $d m^{- 3}$ of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively.

The ratio $(k_{1} / k_{0}$ ) of the rate constants for first order $(k_{1})$ and zero order $(k_{0})$ of the reaction is

Discussion

4787.	A simple pendulum takes 5 s to complete 12 oscillations. What is the time period?
Answer» A simple pendulum takes 5 s to complete 12 oscillations. What is the time period?

Discussion

4788.	Which one of the following sets of phenomena would happen faster if the temperature is increased?
Answer» Which one of the following sets of phenomena would happen faster if the temperature is increased?

Discussion

4789.	How to learn the first twenty elements
Answer» How to learn the first twenty elements

Discussion

4790.	Which one of the following reactions involves the combination of two elements?
Answer» Which one of the following reactions involves the combination of two elements?

Discussion

4791.	Why are radicals unsplit in chemical reactions?
Answer» Why are radicals unsplit in chemical reactions?

Discussion

4792.	Examples of medicine that have acid or base.
Answer» Examples of medicine that have acid or base.

Discussion

4793.	Explain the drawbacks of Dalton's Atomic theory? What did JJ Thompson do to change Dalton's claim? [5 MARKS]
Answer» Explain the drawbacks of Dalton's Atomic theory? What did JJ Thompson do to change Dalton's claim? [5 MARKS]

Discussion

4794.	State the chemical property in each case on which the following uses of baking soda are based: (i) as an antacid. (ii) as a constituent of baking powder. [3 MARKS]
Answer» State the chemical property in each case on which the following uses of baking soda are based: (i) as an antacid. (ii) as a constituent of baking powder. [3 MARKS]

Discussion

4795.	Which of the following is/are caused by excess Sulphur dioxide in the atmosphere?
Answer» Which of the following is/are caused by excess Sulphur dioxide in the atmosphere?

Discussion

4796.	When some salt is mixed with water, the salt appears to disappear. What has happened to the salt?
Answer» When some salt is mixed with water, the salt appears to disappear. What has happened to the salt?

Discussion

4797.	Which of the following is the example of human interference with nature that has upset the biological equilibrium?
Answer» Which of the following is the example of human interference with nature that has upset the biological equilibrium?

Discussion

4798.	Which of the following property of an acid is responsible for itching of skin?
Answer» Which of the following property of an acid is responsible for itching of skin?

Discussion

4799.	You find a substance that is bitter in taste. When you rubbed its solution on your fingers, it felt soapy. What is this substance? Give an example of a substance of similar nature. [2 MARKS]
Answer» You find a substance that is bitter in taste. When you rubbed its solution on your fingers, it felt soapy. What is this substance? Give an example of a substance of similar nature. [2 MARKS]

Discussion

4800.	Which of the following will not conduct electricity in aqueous solution [AMU 1982, 83]
Answer» Which of the following will not conduct electricity in aqueous solution [AMU 1982, 83]

4800.

Which of the following will not conduct electricity in aqueous solution [AMU 1982, 83]

Answer»

Which of the following will not conduct electricity in aqueous solution

[AMU 1982, 83]

Discussion

Explore topic-wise InterviewSolutions in .

What is the valency of carbon in CH4?

When matter is divided into smaller and smaller particles, ultimately a stage is reached where the particles cannot be divided further into smaller particles. These tiny particles are called ___.

What is the second step to balance a chemical equation?

Name three characteristics of metals and non-metals

Explain why? a)Calamine solution is applied on the skin when an ant bits. b)Factory waste is neutralized before disposing it into water bodies. [5 MARKS]

What is a clay? Can it be called a solid?

SI and CGS unit of force

Identify the source that constitutes majority of the water available on the Earth.

Question 10 Which of the following inhibits the seepage of rainwater into the ground? (a) A pukka floor (b) Playground (c) Grass Lawn (d) Forest land

What were the limitations of Newland’s Law of Octaves? [3 MARKS]

Can we write Sodium Hydrogen Carbonate as Sodium Bicarbonate?

Which of the following is an antibiotic which cures bacterial infections?

What is an universal indicator?

What is difference 15N2 and 6O2 in terms of what they represent?

(a) Condensation of steam is not a chemical change. Explain. (b) If two liquids are immiscible, which of the two liquids will be at the bottom if they are taken together in a container? [2 MARKS]

Can an insect-pollinated flowers be wind-pollinated?

Why lime is added during coagulation step of water treatment?

Isobars differ in ______.

You have hydrochloric acid in a beaker and you want to perform the experiment of neutralization, so which among the following will you use?

Which of the following option(s) is/are correct with respect to the figure given below?

Elements are made up of atoms. But why we say elements are indivisible?. Accoriding to dalton's theory atoms are the smallest unit of matter

Find the correct sequence of processes used for purification of water.

Are food cans actually made of iron? If yes, why don't they get corroded? [3 MARKS]

From what source do we obtain litmus solution? [2 MARKS]

Observe the image above and conclude what kind of a change is playing clay undergoing when it is moulded into a caterpillar?

Identify the general representation of a combination reaction.

Match the following and choose the correct option: i. A - horizon a. Small lumps of rocks ii. B - horizon b. Hard layer which is difficult to dig iii. C - horizon c. Dark in colour and rich in humus iv. Bedrock d. Less humus and more minerals, compact

The rise and fall of sea waves is an example of_______.

What are physical change and chemical change give two example?

Which of the following isn't direct a source of fresh water?

The force of attraction between the polar molecules having permanent dipole and the molecules lacking permanent dipole is

A lending library has a fixed charge for the first two days and an additional charge for each day thereafter. Sunil paid Rs 28 for a book kept for seven days, while Sohail paid Rs 32 for the book he kept for nine days. Find the charge for each extra day.

Name the change involved in boiling water to make pasta.

A lead storage battery containing 5.0L of H2SO4 solution is operated for 9.65×105s with a steady current of 100 mA. Assuming volume of the solution remains constant, normality of H2SO4 will :

Which of the following is not the possible path followed by cathode rays ejecting from the surface of a cathode?

Under the same reaction conditions, the initial concentration of 1.386 mol dm−3 of a substance becomes half in 40 seconds and 20 seconds through first order and zero order kinetics, respectively. The ratio (k1/k0) of the rate constants for first order (k1) and zero order (k0)of the reaction is

A simple pendulum takes 5 s to complete 12 oscillations. What is the time period?

Which one of the following sets of phenomena would happen faster if the temperature is increased?

How to learn the first twenty elements

Which one of the following reactions involves the combination of two elements?

Why are radicals unsplit in chemical reactions?

Examples of medicine that have acid or base.

Explain the drawbacks of Dalton's Atomic theory? What did JJ Thompson do to change Dalton's claim? [5 MARKS]

State the chemical property in each case on which the following uses of baking soda are based: (i) as an antacid. (ii) as a constituent of baking powder. [3 MARKS]

Which of the following is/are caused by excess Sulphur dioxide in the atmosphere?

When some salt is mixed with water, the salt appears to disappear. What has happened to the salt?

Which of the following is the example of human interference with nature that has upset the biological equilibrium?

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

You find a substance that is bitter in taste. When you rubbed its solution on your fingers, it felt soapy. What is this substance? Give an example of a substance of similar nature. [2 MARKS]

Which of the following will not conduct electricity in aqueous solution [AMU 1982, 83]