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Q:

Atomic Number of Hydrogen is _______.

A) 4 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: D) 1

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Q:

Which of the following statements is INCORRECT?

A) Solids have definite volume  B) solids are rigid 
C) Solids have indefinite shape  D) Solids are almost incompressible
 
Answer & Explanation Answer: C) Solids have indefinite shape 

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Q:

Select the option that correctly matches the contents of the first column with the contents of the second column.

 

A. Elements combine in fixed ratios I. Dalton's atomic theory
B. Atoms are indivisible II. The same number of molecules
C. Sulphate and Oxalate ions are anions, whereas magnesium and III. Law of constant proportions
D. Gram atomic mass of an element and the gram molecular mass of a compound contain IV. Ammonium ions are cations

 

A) A-III, B-II, C-IV, D-I B) A-III, B-I, C-IV, D-II
C) A-III, B-IV, C-I, D-II D) A-I, B-III, C-IV, D-II
 
Answer & Explanation Answer: B) A-III, B-I, C-IV, D-II

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Q:

Which compound is used in Anti-malarial drug?

A) Aspirin B) Neosporin
C) Chloroquin D) Antacid
 
Answer & Explanation Answer: C) Chloroquin

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Q:

Why does carbon tetrachloride have no dipole moment?

A) Because of same size of carbon and chlorine atoms B) Because of regular tetrahedral structure
C) Because of planar structure D) Because of similar electron affinities of carbon and chlorine
 
Answer & Explanation Answer: B) Because of regular tetrahedral structure

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Q:

Match the following items.

A) I – 2, II – 3, III – 4, IV – 1 B) I – 2, II – 3, III – 1, IV – 4
C) I – 3, II – 2, III – 1, IV – 4 D) I – 2, II – 1, III – 3, IV – 4
 
Answer & Explanation Answer: A) I – 2, II – 3, III – 4, IV – 1

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Q:

The tenth element in the Newland's periodic classification resembles the

A) Fourth B) Ninth
C) First D) Third
 
Answer & Explanation Answer: D) Third

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Q:

Which among the following is called quicksilver?

A) Titanium B) Mercury
C) Platinum D) Radium
 
Answer & Explanation Answer: B) Mercury

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