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Q:

If Metal A displaces Metal B from its solution, then Metal A ____.

A) is more reactive than B B) is less reactive than B
C) is heavier than B D) has the same reactivity as B
 
Answer & Explanation Answer: A) is more reactive than B

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Q:

The major ingredient of sweetened soft drink is

A) Carbonated water B) Hydrochloric acid
C) Phosphoric acid D) Caffeine
 
Answer & Explanation Answer: A) Carbonated water

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Q:

Which of the following salts is acidic in nature?

A) Sodium Carbonate B) Ammonium Phosphate
C) Magnesium Sulphate D) Sadium Acetate
 
Answer & Explanation Answer: A) Sodium Carbonate

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Q:

Nitrogen fixation is a process of

A) Assimilation of nitrate B) Utilisation of nitrogen gas
C) Conversion of organic nitrogen to proteins D) Conversion of molecular nitrogen to ammonia
 
Answer & Explanation Answer: C) Conversion of organic nitrogen to proteins

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Q:

Which of the following is added to iron to make iron hard and strong?

A) Zinc B) Copper
C) Carbon D) Sodium
 
Answer & Explanation Answer: C) Carbon

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Q:

NaCl is a salt which is made up of

A) Strong acid and weak base B) Weak acid and weak base
C) Strong acid and strong base D) Weak acid and strong base
 
Answer & Explanation Answer: C) Strong acid and strong base

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Q:

The pH value increase from 7 to 14 represents a

A) decrease in H+ ion concentration B) decrease in OH- ion concentration
C) increase in OH- ion concentration D) increase in H+ ion concentration
 
Answer & Explanation Answer: C) increase in OH- ion concentration

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Q:

Atomic mass of Sulphur is 32 u. The number of moles in 16 grams of Sulphur is:

A) 0.5 moles of Sulphur B) 0.25 moles of Sulphur
C) 0.75 moles of Sulphur D) 1 mole of Sulphur
 
Answer & Explanation Answer: A) 0.5 moles of Sulphur

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