Q:

In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is

1) $A_{2} B_{5}$

2) $A_{3} B_{2}$

3) $A_{2} B_{3}$

4) $A_{3} B_{4}$

A) Option 1	B) Option 2
C) Option 3	D) Option 4

Answer & Explanation Answer: A) Option 1

Explanation:

$Z_{A} = \frac{8}{8}$ ; $Z_{B} = \frac{5}{2}$

So formula of compound is $A B_{\frac{5}{2}}$

i.e., $A_{2} B_{5}$ .

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Filed Under: Chemistry
Exam Prep: AIEEE

13 9156

Q:

Guess the Missing number in the Number Challenge ?

A) 8	B) 32
C) 44	D) 64

Answer & Explanation Answer: D) 64

Explanation:

The logic in the challenge is

$\sqrt{81} x 6 = 9 x 6 = 54$

$\sqrt{144} x 7 = 84$

Similarly, $\sqrt{64} x 8 = 8 x 8 = 64$ .

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Filed Under: Math Puzzles
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21 9155

Q:

Orlon is a polymer of

A) Dacron	B) Acrylonitrile
C) Polyamide Nylon	D) None of the above

Answer & Explanation Answer: B) Acrylonitrile

Explanation:

The monomeric unit of orlon polymer is Acrylonitrile. Orlon is also known as Polyacrylonitrile (PAN).

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Filed Under: Chemistry
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19 9141

Q:

Which among the following does NOT hold their office till the pleasure of President?

A) Governor of State	B) Attorney General of India
C) Chief Election Commissioner	D) Prime Minister of India

Answer & Explanation Answer: C) Chief Election Commissioner

Explanation:

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Filed Under: Indian Politics
Exam Prep: Bank Exams

0 9141

Q:

"Eco Mark" is given to the Indian Products that are ___________.

A) pure and unadulterated	B) rich in proteins
C) environment friendly	D) economically viable

Answer & Explanation Answer: C) environment friendly

Explanation:

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Filed Under: General Science
Exam Prep: Bank Exams

2 9133

Q:

By which ruler Pataliputra was chosen for the first time as a capital

A) Ajatasatru	B) Kalasok
C) Udayin	D) Kanishka

Answer & Explanation Answer: C) Udayin

Explanation:

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Filed Under: Indian History

11 9132

Q:

The formula C6H14 represents the hydrocarbon ___.

A) Hexene	B) Heptyne
C) Hexane	D) Hexyne

Answer & Explanation Answer: C) Hexane

Explanation:

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 9129

Q:

The fundamental particles present in equal numbers in neutral atoms are

A) protons and electrons	B) neutrons and electrons
C) protons and neutrons	D) protons and positrons

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