Questions

Q:

Which of the following is a commercial source of energy?

A) Agricultural waste B) Dried dung
C) Sun D) Natural gas
 
Answer & Explanation Answer: D) Natural gas

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Q:

Magnesium oxide (MgO) + Water (H2O) = ?

A) [Mg(OH)] B) [Mg(O2H)2]
C) [Mg2(OH)] D) [Mg(OH)2]
 
Answer & Explanation Answer: D) [Mg(OH)2]

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Q:

What is formed when Carbon Dioxide is passed through Lime Water?

A) Copper Sulphate B) Calcium Carbonate
C) Magnesium Oxide D) Baking Soda
 
Answer & Explanation Answer: B) Calcium Carbonate

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Q:

Qutub Minar is located in _____ .

A) Delhi B) Ghaziabad
C) Noida D) Gurugram
 
Answer & Explanation Answer: A) Delhi

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Q:

Which state of India does not get the border from Pakistan?

A) Gujarat B) Rajasthan
C) Punjab D) Himachal Pradesh
 
Answer & Explanation Answer: D) Himachal Pradesh

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Q:

Inert gases are

A) Miscible with water B) Not stable
C) Chemically unreactive D) Chemically very active
 
Answer & Explanation Answer: C) Chemically unreactive

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Q:

What is the reaction between an acid and a base called?

A) Desalination B) Crystallisation
C) Neutralisation D) Sublimation
 
Answer & Explanation Answer: C) Neutralisation

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Q:

Which one of the following is commonly used for pulp bleaching in the paper industry?

A) Mild sulphuric acid B) Glucose isomerase
C) peroxide D) Iodine and water
 
Answer & Explanation Answer: C) peroxide

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