Questions

Q:

Which one of the following is the most characteristic property of an element?

 

A) Density B) Boiling point
C) Mass number D) Atomic number
 
Answer & Explanation Answer: D) Atomic number

Explanation:

Atomic  number  is  the  fundamental properties  of  an  element.  Every atom  is  identified  by  its  unique atomic  number.  Atomic  number  is equal  to  the  number  of  protons present in an atom of the element.

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Q:

In archery, what shape is the target

A) Squar B) Round
C) Triangular D) Rectangular
 
Answer & Explanation Answer: B) Round

Explanation:
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Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq) D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)
 
Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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Q:

Select the antonym of

magnate

 

A) mogul B) tycoon
C) aristocrat D) nonentity
 
Answer & Explanation Answer: D) nonentity

Explanation:
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Q:

Choose the word that best defines the given phrases:-

To throw up the sponge

A) To surrender or give up a contest B) To offer a challenge
C) To become utterly disappointed D) To maintain grit and enthusiasm until the end
 
Answer & Explanation Answer: A) To surrender or give up a contest

Explanation:

To throw up the sponge means to give up a contest or to acknowledge defeat or surrender

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Q:

What is the location of India's first elevated Urban Expressway?

 

A) Mumbai to Pune B) Delhi to Gurugram
C) Chennai to Bengaluru D) Lucknow to Allahabad
 
Answer & Explanation Answer: B) Delhi to Gurugram

Explanation:
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Q:

Which among the following is NOT a member of any of the two Houses of the Indian Parliament?

 

I. Prime Minister of India

II. Finance Minister of India

III. President of India

 

A) Only I B) Only II
C) Only III D) Both II and III
 
Answer & Explanation Answer: C) Only III

Explanation:
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Q:

The main element used in the vulcanisation of rubber is

A) nickel B) copper
C) sulphur D) graphite
 
Answer & Explanation Answer: C) sulphur

Explanation:

In vulcanization, cruder rubber is heated with 3% sulphur at about for 1200C for 2-3 hours.

Vulcanised rubber is a vastly improved product.

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