5083 + Interview Questions in Chemistry Page 101 InterviewSolution

5001.	Difference between scavenger and decomposers.
Answer» Difference between scavenger and decomposers.

Discussion

5002.	Which of these can be used to cure indigestion?
Answer» Which of these can be used to cure indigestion?

Discussion

5003.	What will be A, B and C if the following reaction is balanced? AFeCl3+BMgO→Fe2O3+CMgCl2
Answer» What will be A, B and C if the following reaction is balanced? $A F e C l_{3} + B M g O \to F e_{2} O_{3} + C M g C l_{2}$

Discussion

5004.	How to balance chemical equation C4H10+02==C02+H2O
Answer» How to balance chemical equation C4H10+02==C02+H2O

5004.

How to balance chemical equation C4H10+02==C02+H2O

Answer»

How to balance chemical equation

C4H10+02==C02+H2O

Discussion

5005.	What is a silkworm called when it becomes an adult?
Answer» What is a silkworm called when it becomes an adult?

Discussion

5006.	Ram used to dump his solid waste directly into sewage. Over a period of time, dengue started spreading in his area. Which of the following could be the reason for the spread of Dengue infection?
Answer» Ram used to dump his solid waste directly into sewage. Over a period of time, dengue started spreading in his area. Which of the following could be the reason for the spread of Dengue infection?

Discussion

5007.	Classify wastewater on the basis of their souces. [3 MARKS]
Answer» Classify wastewater on the basis of their souces. [3 MARKS]

Discussion

5008.	Why do we apply pressure during filteration process?
Answer» Why do we apply pressure during filteration process?

Discussion

5009.	The ___ of animals such as sheep, goats, and cattle is used for manufacturing leather goods.
Answer» The ___ of animals such as sheep, goats, and cattle is used for manufacturing leather goods.

Discussion

5010.	The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as
Answer» The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as

Discussion

5011.	Water vapour in the air condenses to form _______ which is usually seen during winters near ground and visibility is very less.
Answer» Water vapour in the air condenses to form _______ which is usually seen during winters near ground and visibility is very less.

Discussion

5012.	You can make a copper wire but not a coal wire. It is because:
Answer» You can make a copper wire but not a coal wire. It is because:

Discussion

5013.	A student took a sample of a chemical and added acid to it, a gas is released which turned lime water milky. Which of the following option could be the chemical sample taken by the student?
Answer» A student took a sample of a chemical and added acid to it, a gas is released which turned lime water milky. Which of the following option could be the chemical sample taken by the student?

Discussion

5014.	State the differences between compounds and mixtures with an example of each. [3 MARKS]
Answer» State the differences between compounds and mixtures with an example of each. [3 MARKS]

Discussion

5015.	Hydrochloric acid is a concentrated acid which can burn several things even our hands but why it does not it burn us when it is secreted in our stomach
Answer» Hydrochloric acid is a concentrated acid which can burn several things even our hands but why it does not it burn us when it is secreted in our stomach

Discussion

5016.	An untreated human excreta is a health hazard .Explain.
Answer» An untreated human excreta is a health hazard .Explain.

Discussion

5017.	Explain physical and chemical changes with examples. [3 MARKS]
Answer» Explain physical and chemical changes with examples. [3 MARKS]

Discussion

5018.	Animals dwelling in the forests play an important role in its growth and regeneration. Justify. [2 MARKS]
Answer» Animals dwelling in the forests play an important role in its growth and regeneration. Justify. [2 MARKS]

Discussion

5019.	In the Sahara desert, long-staple cotton is grown in
Answer» In the Sahara desert, long-staple cotton is grown in

Discussion

5020.	In an exothermic reaction A→B, the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ mol−1, the activation energy of the reverse reaction is :
Answer» In an exothermic reaction $A \to B$ , the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ $m o l^{- 1}$ , the activation energy of the reverse reaction is :

Discussion

5021.	Give ways of better housekeeping practices. [3 MARKS]
Answer» Give ways of better housekeeping practices. [3 MARKS]

Discussion

5022.	(A) follows first order reaction : A→ Products; concentration of A changes from 0.1 M to 0.025 M in 40 minutes. Find the rate of reaction of A when its concentration is 0.01 M.
Answer» (A) follows first order reaction : $A \to$ Products; concentration of A changes from 0.1 M to 0.025 M in 40 minutes. Find the rate of reaction of A when its concentration is 0.01 M.

Discussion

5023.	What are the crops which are grown in the rainy season called as?
Answer» What are the crops which are grown in the rainy season called as?

5023.

What are the crops which are grown in the rainy season called as?

Answer»

What are the crops which are grown in the rainy season called as?

Discussion

5024.	What is global warming?
Answer» What is global warming?

Discussion

5025.	Metals are considered to be good conductors of heat, because their molecules are:
Answer» Metals are considered to be good conductors of heat, because their molecules are:

Discussion

5026.	Bharath heated a closed vessel full of water. After some time he observed that the water started boiling. After some time there is no water inside the vessel. This is a/an____.
Answer» Bharath heated a closed vessel full of water. After some time he observed that the water started boiling. After some time there is no water inside the vessel. This is a/an____.

Discussion

5027.	Consider the following reaction. Cu(NO3)2→CuO+NO2+O2 Which of the following are correct?
Answer» Consider the following reaction. $C u (N O_{3})_{2} \to C u O + N O_{2} + O_{2}$ Which of the following are correct?

5027.

Consider the following reaction. Cu(NO3)2→CuO+NO2+O2 Which of the following are correct?

Answer»

Consider the following reaction.

$C u (N O_{3})_{2} \to C u O + N O_{2} + O_{2}$

Which of the following are correct?

Discussion

5028.	Indigo carmine imparts _______colour to food.
Answer» Indigo carmine imparts _______colour to food.

Discussion

5029.	Which of the following substance(s) is/are acidic in nature?
Answer» Which of the following substance(s) is/are acidic in nature?

Discussion

5030.	What is groundwater? Name the main source of groundwater.
Answer» What is groundwater? Name the main source of groundwater.

Discussion

5031.	Soil contains air, water, minerals and organic matter. What conclusion can be made from the above statement?
Answer» Soil contains air, water, minerals and organic matter. What conclusion can be made from the above statement?

5031.

Soil contains air, water, minerals and organic matter. What conclusion can be made from the above statement?

Answer»

Soil contains air, water, minerals and organic matter.

What conclusion can be made from the above statement?

Discussion

5032.	Question 1 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false. (a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world.
Answer» Question 1 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false. (a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world.

Discussion

5033.	Which of the following is not a property of an acid?
Answer» Which of the following is not a property of an acid?

Discussion

5034.	Dissolving salt in water is a physical or a chemical change?
Answer» Dissolving salt in water is a physical or a chemical change?

Discussion

5035.	Which are the reasons of oxygenated water being preferred over potassium chlorate for preparation of oxygen?
Answer» Which are the reasons of oxygenated water being preferred over potassium chlorate for preparation of oxygen?

Discussion

5036.	The molecular formula of sugar is
Answer» The molecular formula of sugar is

Discussion

5037.	When dilute hydrochloric acid is heated with iron-sulphide, a gas with rotten egg smell is evolved. This gas is
Answer» When dilute hydrochloric acid is heated with iron-sulphide, a gas with rotten egg smell is evolved. This gas is

Discussion

5038.	Iron nails were dipped in a blue solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed to light green. The blue and light green solutions are
Answer» Iron nails were dipped in a blue solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed to light green. The blue and light green solutions are

Discussion

5039.	What will be the atomicity of: a) The molecule which we consume during respiration and during photosynthesis it is released. b) The red coloured element which we use in matchboxes. c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.
Answer» What will be the atomicity of: a) The molecule which we consume during respiration and during photosynthesis it is released. b) The red coloured element which we use in matchboxes. c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.

5039.

What will be the atomicity of: a) The molecule which we consume during respiration and during photosynthesis it is released. b) The red coloured element which we use in matchboxes. c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.

Answer»

What will be the atomicity of:

a) The molecule which we consume during respiration and during photosynthesis it is released.

b) The red coloured element which we use in matchboxes.

c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.

Discussion

5040.	Is rice starch acidic or basic in nature?
Answer» Is rice starch acidic or basic in nature?

Discussion

5041.	Name the compound (NH4)2SO4
Answer» Name the compound (NH₄)₂SO₄

Discussion

5042.	According to this passage, which one of the following statements is correct’?
Answer» According to this passage, which one of the following statements is correct’?

Discussion

5043.	Why is water considered asa compound
Answer» Why is water considered asa compound

Discussion

5044.	Identify the gas that is chemically inert.
Answer» Identify the gas that is chemically inert.

Discussion

5045.	What is the difference between hydronium ion and hydrogen ion?
Answer» What is the difference between hydronium ion and hydrogen ion?

Discussion

5046.	Which of the following statement is true?
Answer» Which of the following statement is true?

Discussion

5047.	Acetic acid will turn red litmus to
Answer» Acetic acid will turn red litmus to

Discussion

5048.	NaOH solution was added to HCl solution. write the equation and result
Answer» NaOH solution was added to HCl solution. write the equation and result

Discussion

5049.	Why are acids good conductors of eletricity ?
Answer» Why are acids good conductors of eletricity ?

Discussion

5050.	What is the difference between a compound and a mixture.
Answer» What is the difference between a compound and a mixture.

Discussion

Explore topic-wise InterviewSolutions in .

Difference between scavenger and decomposers.

Which of these can be used to cure indigestion?

What will be A, B and C if the following reaction is balanced? AFeCl3+BMgO→Fe2O3+CMgCl2

How to balance chemical equation C4H10+02==C02+H2O

What is a silkworm called when it becomes an adult?

Ram used to dump his solid waste directly into sewage. Over a period of time, dengue started spreading in his area. Which of the following could be the reason for the spread of Dengue infection?

Classify wastewater on the basis of their souces. [3 MARKS]

Why do we apply pressure during filteration process?

The ___ of animals such as sheep, goats, and cattle is used for manufacturing leather goods.

The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as

Water vapour in the air condenses to form _______ which is usually seen during winters near ground and visibility is very less.

You can make a copper wire but not a coal wire. It is because:

A student took a sample of a chemical and added acid to it, a gas is released which turned lime water milky. Which of the following option could be the chemical sample taken by the student?

State the differences between compounds and mixtures with an example of each. [3 MARKS]

Hydrochloric acid is a concentrated acid which can burn several things even our hands but why it does not it burn us when it is secreted in our stomach

An untreated human excreta is a health hazard .Explain.

Explain physical and chemical changes with examples. [3 MARKS]

Animals dwelling in the forests play an important role in its growth and regeneration. Justify. [2 MARKS]

In the Sahara desert, long-staple cotton is grown in

In an exothermic reaction A→B, the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ mol−1, the activation energy of the reverse reaction is :

Give ways of better housekeeping practices. [3 MARKS]

(A) follows first order reaction : A→ Products; concentration of A changes from 0.1 M to 0.025 M in 40 minutes. Find the rate of reaction of A when its concentration is 0.01 M.

What are the crops which are grown in the rainy season called as?

What is global warming?

Metals are considered to be good conductors of heat, because their molecules are:

Bharath heated a closed vessel full of water. After some time he observed that the water started boiling. After some time there is no water inside the vessel. This is a/an____.

Consider the following reaction. Cu(NO3)2→CuO+NO2+O2 Which of the following are correct?

Indigo carmine imparts _______colour to food.

Which of the following substance(s) is/are acidic in nature?

What is groundwater? Name the main source of groundwater.

Soil contains air, water, minerals and organic matter. What conclusion can be made from the above statement?

Question 1 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false. (a) The freshwater stored in the ground is much more than that present in the rivers and lakes of the world.

Which of the following is not a property of an acid?

Dissolving salt in water is a physical or a chemical change?

Which are the reasons of oxygenated water being preferred over potassium chlorate for preparation of oxygen?

The molecular formula of sugar is

When dilute hydrochloric acid is heated with iron-sulphide, a gas with rotten egg smell is evolved. This gas is

Iron nails were dipped in a blue solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed to light green. The blue and light green solutions are

What will be the atomicity of: a) The molecule which we consume during respiration and during photosynthesis it is released. b) The red coloured element which we use in matchboxes. c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.

Is rice starch acidic or basic in nature?

Name the compound (NH4)2SO4

According to this passage, which one of the following statements is correct’?

Why is water considered asa compound

Identify the gas that is chemically inert.

What is the difference between hydronium ion and hydrogen ion?

Which of the following statement is true?

Acetic acid will turn red litmus to

NaOH solution was added to HCl solution. write the equation and result

Why are acids good conductors of eletricity ?

What is the difference between a compound and a mixture.