5083 + Interview Questions in Chemistry Page 64 InterviewSolution

3151.	The substances that undergo chemical changes and are represented on the left side of the arrow in a chemical reaction are called ___ .
Answer» The substances that undergo chemical changes and are represented on the left side of the arrow in a chemical reaction are called ___ .

Discussion

3152.	Why is ocean water saline not other water water bodies?
Answer» Why is ocean water saline not other water water bodies?

Discussion

3153.	Neutralisation of calcium hydroxide with hydrochloric acid is an example of:
Answer» Neutralisation of calcium hydroxide with hydrochloric acid is an example of:

Discussion

3154.	How to obtain pure copper sulphate crystals?
Answer» How to obtain pure copper sulphate crystals?

Discussion

3155.	Balanced chemical equation of Ca+N2
Answer» Balanced chemical equation of Ca+N2

Discussion

3156.	Which of the following alloy is used in making the bodies of aeroplanes?
Answer» Which of the following alloy is used in making the bodies of aeroplanes?

Discussion

3157.	To completely neutralized one molecule of Acetic Acid how many Sodium Hydroxide molecules are required?
Answer» To completely neutralized one molecule of Acetic Acid how many Sodium Hydroxide molecules are required?

Discussion

3158.	Water and paraffin wax can be separated easily, because:
Answer» Water and paraffin wax can be separated easily, because:

Discussion

3159.	What happens when there is a gain or loss of electrons in an atom?
Answer» What happens when there is a gain or loss of electrons in an atom?

Discussion

3160.	Which solutions can be used for crystallisation
Answer» Which solutions can be used for crystallisation

Discussion

3161.	Which of the following aspects is/are crucial for the storage of seeds?
Answer» Which of the following aspects is/are crucial for the storage of seeds?

Discussion

3162.	Why the sea water had salt? How salt come in sea water?
Answer» Why the sea water had salt? How salt come in sea water?

Discussion

3163.	What is alkalies
Answer» What is alkalies

Discussion

3164.	How could i know that any element is a strong or weak acid/base/salts if given in examinations.
Answer» How could i know that any element is a strong or weak acid/base/salts if given in examinations.

Discussion

3165.	Which of the following is the type of hair found in sheep?
Answer» Which of the following is the type of hair found in sheep?

Discussion

3166.	Question 12 Look at the given reaction. Hydrochloric acid + Sodium hydroxide (base) ⟹ Sodium chloride (salt) +Water Sodium chloride formed this reaction remains in solution form. Can we get solid sodium chloride from the solution? Suggest a method (if any).
Answer» Question 12 Look at the given reaction. Hydrochloric acid + Sodium hydroxide (base) $⟹$ Sodium chloride (salt) +Water Sodium chloride formed this reaction remains in solution form. Can we get solid sodium chloride from the solution? Suggest a method (if any).

3166.

Question 12 Look at the given reaction. Hydrochloric acid + Sodium hydroxide (base) ⟹ Sodium chloride (salt) +Water Sodium chloride formed this reaction remains in solution form. Can we get solid sodium chloride from the solution? Suggest a method (if any).

Answer»

Question 12

Look at the given reaction.
Hydrochloric acid + Sodium hydroxide (base) $⟹$ Sodium chloride (salt) +Water
Sodium chloride formed this reaction remains in solution form. Can we get solid sodium chloride from the solution? Suggest a method (if any).

Discussion

3167.	Process in which hen sit on eggs and keep them warm is known as
Answer» Process in which hen sit on eggs and keep them warm is known as

Discussion

3168.	What is base
Answer» What is base

Discussion

3169.	How did the Taj Mahal change its colour?
Answer» How did the Taj Mahal change its colour?

Discussion

3170.	Statement1 - Potassium Chlorate is used for laboratory preparation of Oxygen. Statement2 - Potassium Chlorate on heating leads to the evolution of oxygen gas.
Answer» Statement1 - Potassium Chlorate is used for laboratory preparation of Oxygen. Statement2 - Potassium Chlorate on heating leads to the evolution of oxygen gas.

3170.

Statement1 - Potassium Chlorate is used for laboratory preparation of Oxygen. Statement2 - Potassium Chlorate on heating leads to the evolution of oxygen gas.

Answer»

Statement1 - Potassium Chlorate is used for laboratory preparation of Oxygen.

Statement2 - Potassium Chlorate on heating leads to the evolution of oxygen gas.

Discussion

3171.	The galvanised iron article Is protected against rusting even if the zinc layer is broken. Why?
Answer» The galvanised iron article Is protected against rusting even if the zinc layer is broken. Why?

Discussion

3172.	In the video mam has mentioned that the expiry date on water bottles is not for water but for bottle so what will happen to the bottle when it expires?
Answer» In the video mam has mentioned that the expiry date on water bottles is not for water but for bottle so what will happen to the bottle when it expires?

Discussion

3173.	Why do The Goats found in the region of Gujarat are called Marwari?
Answer» Why do The Goats found in the region of Gujarat are called Marwari?

Discussion

3174.	Are molecules and elements the same?If not,what's the difference between the two?
Answer» Are molecules and elements the same?If not,what's the difference between the two?

Discussion

3175.	Low visibility during cold weather is due to___.
Answer» Low visibility during cold weather is due to___.

Discussion

3176.	Which of the following impurity present in sewage is removed by chlorination?
Answer» Which of the following impurity present in sewage is removed by chlorination?

Discussion

3177.	Breifly explain why is water considered as a compound ?
Answer» Breifly explain why is water considered as a compound ?

Discussion

3178.	I have a question in my notebook asking "why does a Bullock cart have wooden wheels with metal rims"
Answer» I have a question in my notebook asking "why does a Bullock cart have wooden wheels with metal rims"

Discussion

3179.	Given, E0Cr(3+)/Cr=−0.74V;E0MnO−4/Mn2+=1.51V E0Cr2O2−7/Cr3+=1.33V;E0Cl/Cl−=1.36V Based on the data given above strongest oxidising agent will be
Answer» Given, $E_{C r^{(} 3 +) / C r}^{0} = - 0.74 V; E_{M n O_{4}^{-} / M n^{2 +}}^{0} = 1.51 V$ $E_{C r_{2} O_{7}^{2 -} / C r^{3 +}}^{0} = 1.33 V; E_{C l / C l^{-}}^{0} = 1.36 V$ Based on the data given above strongest oxidising agent will be

Discussion

3180.	What is a proton?
Answer» What is a proton?

Discussion

3181.	What is a sewerage? What are various inorganic impurities present in wastewater? [2 MARKS]
Answer» What is a sewerage? What are various inorganic impurities present in wastewater? [2 MARKS]

Discussion

3182.	Which of the following is true with the conversion of milk to curd?
Answer» Which of the following is true with the conversion of milk to curd?

Discussion

3183.	Identify the monoatomic molecule from the following:
Answer» Identify the monoatomic molecule from the following:

Discussion

3184.	In infinite dilutions, the molar conductances of Ba2+ and Cl- are 127 and 76 . The equivalent conductivity of at infinite dilution is [CBSE 2000]
Answer» In infinite dilutions, the molar conductances of Ba²⁺ and Cl^- are 127 and 76 . The equivalent conductivity of at infinite dilution is [CBSE 2000]

3184.

In infinite dilutions, the molar conductances of Ba2+ and Cl- are 127 and 76 . The equivalent conductivity of at infinite dilution is [CBSE 2000]

Answer»

In infinite dilutions, the molar conductances of Ba²⁺ and Cl^- are 127 and

76 . The equivalent conductivity of at infinite

dilution is

[CBSE 2000]

Discussion

3185.	Fill in the blank with a number which balances the following reaction. 3Fe+4H2O→Fe3O4+yH2 Then, y = ___
Answer» Fill in the blank with a number which balances the following reaction. $3 F e + 4 H_{2} O \to F e_{3} O_{4} + y H_{2}$ Then, y = ___

3185.

Fill in the blank with a number which balances the following reaction. 3Fe+4H2O→Fe3O4+yH2 Then, y = ___

Answer»

Fill in the blank with a number which balances the following reaction.

$3 F e + 4 H_{2} O \to F e_{3} O_{4} + y H_{2}$

Then, y = ___

Discussion

3186.	Which of the following control measures would not help prevent the spread of malaria?
Answer» Which of the following control measures would not help prevent the spread of malaria?

Discussion

3187.	A student purchases common salt from the market which is contaminated with Ammonium Chloride (NH4Cl ). Identify the technique that he should adopt to obtain pure NaCl.
Answer» A student purchases common salt from the market which is contaminated with Ammonium Chloride ( ${N H}_{4} C l$ ). Identify the technique that he should adopt to obtain pure $N a C l$ .

Discussion

3188.	Define bio-clip. How is it different from shearing? [2 MARKS]
Answer» Define bio-clip. How is it different from shearing? [2 MARKS]

Discussion

3189.	Pick the odd one out.
Answer» Pick the odd one out.

Discussion

3190.	Question 15 Fill in the blanks in the given passage. The rainwater and __ from other sources such as rivers and ponds seeps through the __ and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.
Answer» Question 15 Fill in the blanks in the given passage. The rainwater and __ from other sources such as rivers and ponds seeps through the __ and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.

3190.

Question 15 Fill in the blanks in the given passage. The rainwater and from other sources such as rivers and ponds seeps through the and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.

Answer»

Question 15

Fill in the blanks in the given passage.
The rainwater and __ from other sources such as rivers and ponds seeps through the __ and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.

Discussion

3191.	Is melting if wax physical change???
Answer» Is melting if wax physical change???

Discussion

3192.	Which among the following components help make up soil?
Answer» Which among the following components help make up soil?

Discussion

3193.	Why the level of water doesn't rise when sugar is dissolved in water?
Answer» Why the level of water doesn't rise when sugar is dissolved in water?

Discussion

3194.	Why is zinc is used as battery covering?
Answer» Why is zinc is used as battery covering?

Discussion

3195.	What are the contents present in acid rain?
Answer» What are the contents present in acid rain?

Discussion

3196.	What methods would you use to separate a mixture of camphor, salt and sand?
Answer» What methods would you use to separate a mixture of camphor, salt and sand?

Discussion

3197.	What is the atomicity ? Write the atomicity of hydrogen , helium , chlorine , oxygen , nitrogen
Answer» What is the atomicity ? Write the atomicity of hydrogen , helium , chlorine , oxygen , nitrogen

Discussion

3198.	In the morning, why it becomes bright all around us when the sun rises?
Answer» In the morning, why it becomes bright all around us when the sun rises?

Discussion

3199.	What are the benefits of residing near a forest area?
Answer» What are the benefits of residing near a forest area?

Discussion

3200.	Which of the following gases is responsible for global warming?
Answer» Which of the following gases is responsible for global warming?

Discussion

Explore topic-wise InterviewSolutions in .

The substances that undergo chemical changes and are represented on the left side of the arrow in a chemical reaction are called ___ .

Why is ocean water saline not other water water bodies?

Neutralisation of calcium hydroxide with hydrochloric acid is an example of:

How to obtain pure copper sulphate crystals?

Balanced chemical equation of Ca+N2

Which of the following alloy is used in making the bodies of aeroplanes?

To completely neutralized one molecule of Acetic Acid how many Sodium Hydroxide molecules are required?

Water and paraffin wax can be separated easily, because:

What happens when there is a gain or loss of electrons in an atom?

Which solutions can be used for crystallisation

Which of the following aspects is/are crucial for the storage of seeds?

Why the sea water had salt? How salt come in sea water?

What is alkalies

How could i know that any element is a strong or weak acid/base/salts if given in examinations.

Which of the following is the type of hair found in sheep?

Question 12 Look at the given reaction. Hydrochloric acid + Sodium hydroxide (base) ⟹ Sodium chloride (salt) +Water Sodium chloride formed this reaction remains in solution form. Can we get solid sodium chloride from the solution? Suggest a method (if any).

Process in which hen sit on eggs and keep them warm is known as

What is base

How did the Taj Mahal change its colour?

Statement1 - Potassium Chlorate is used for laboratory preparation of Oxygen. Statement2 - Potassium Chlorate on heating leads to the evolution of oxygen gas.

The galvanised iron article Is protected against rusting even if the zinc layer is broken. Why?

In the video mam has mentioned that the expiry date on water bottles is not for water but for bottle so what will happen to the bottle when it expires?

Why do The Goats found in the region of Gujarat are called Marwari?

Are molecules and elements the same?If not,what's the difference between the two?

Low visibility during cold weather is due to___.

Which of the following impurity present in sewage is removed by chlorination?

Breifly explain why is water considered as a compound ?

I have a question in my notebook asking "why does a Bullock cart have wooden wheels with metal rims"

Given, E0Cr(3+)/Cr=−0.74V;E0MnO−4/Mn2+=1.51V E0Cr2O2−7/Cr3+=1.33V;E0Cl/Cl−=1.36V Based on the data given above strongest oxidising agent will be

What is a proton?

What is a sewerage? What are various inorganic impurities present in wastewater? [2 MARKS]

Which of the following is true with the conversion of milk to curd?

Identify the monoatomic molecule from the following:

In infinite dilutions, the molar conductances of Ba2+ and Cl- are 127 and 76 . The equivalent conductivity of at infinite dilution is [CBSE 2000]

Fill in the blank with a number which balances the following reaction. 3Fe+4H2O→Fe3O4+yH2 Then, y = ___

Which of the following control measures would not help prevent the spread of malaria?

A student purchases common salt from the market which is contaminated with Ammonium Chloride (NH4Cl ). Identify the technique that he should adopt to obtain pure NaCl.

Define bio-clip. How is it different from shearing? [2 MARKS]

Pick the odd one out.

Question 15 Fill in the blanks in the given passage. The rainwater and __ from other sources such as rivers and ponds seeps through the __ and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.

Is melting if wax physical change???

Which among the following components help make up soil?

Why the level of water doesn't rise when sugar is dissolved in water?

Why is zinc is used as battery covering?

What are the contents present in acid rain?

What methods would you use to separate a mixture of camphor, salt and sand?

What is the atomicity ? Write the atomicity of hydrogen , helium , chlorine , oxygen , nitrogen

In the morning, why it becomes bright all around us when the sun rises?

What are the benefits of residing near a forest area?

Which of the following gases is responsible for global warming?

Question 15 Fill in the blanks in the given passage. The rainwater and from other sources such as rivers and ponds seeps through the and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called __.