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Q:

What is the action of dry HCl gas on dry litmus paper?

A) Blue litmus paper turns white B) Blue or red litmus paper does not change its colour
C) Blue litmus paper turns red D) Red litmus paper turns blue
 
Answer & Explanation Answer: B) Blue or red litmus paper does not change its colour

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Q:

Which of the following gases is liberated when Sodium Hydrogen Carbonate is heated?

A) Carbon Monoxide B) Carbon Dioxide
C) Oxygen D) Hydrogen
 
Answer & Explanation Answer: B) Carbon Dioxide

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Q:

Which of the following metals is the most Malleable?

A) Al B) Zn
C) Na D) Ag
 
Answer & Explanation Answer: C) Na

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Q:

Which of the following metals is a liquid at room temperature?

A) Lithium B) Mercury
C) Sodium D) Calcium
 
Answer & Explanation Answer: C) Sodium

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Q:

Which of the following is NOT a radioactive element?

A) Uranium B) Plutonium
C) Titanium D) Thorium
 
Answer & Explanation Answer: C) Titanium

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Q:

Choose the one which is different or odd from the following.

A) Aluminium B) Iron
C) Copper D) Brass
 
Answer & Explanation Answer: D) Brass

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Q:

What is the pH value of human blood?

A) 8.3 B) 6.8
C) 7.4 D) 6
 
Answer & Explanation Answer: C) 7.4

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Q:

The smell that we get when LPG cylinder leaks is due to the presence of

A) Nitrogen peroxide B) Carbon monoxide
C) Sulphur compound D) Carbon dioxide
 
Answer & Explanation Answer: C) Sulphur compound

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