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Q:

The PCl5 molecule has trigonal bipyramidal structure. Therefore,the hybridization of p orbitals should be

A) sp2 B) sp3
C) dsp2 D) dsp3
 
Answer & Explanation Answer: D) dsp3

Explanation:

The P atom needs five orbitals to form the five P-Cl bonds. It has a 3s and three 3p orbitals, so it must use one of its 3d orbitals to form the fifth bond. These orbitals are hybridized to form five sp3d orbitals that just happen to point in the right directions to form a trigonal bipyramid.

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Filed Under: Chemistry
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Q:

All phosphorus atoms have the same

A) Mass number B) Number of neutrons plus the number of electrons
C) Atomic number D) Number of neutrons plus the number of protons
 
Answer & Explanation Answer: C) Atomic number

Explanation:
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Q:

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them (a), (b) or (c) is better than the underlined part, indicate your response on the Answer Sheet against the corresponding letter. If none of the substitutions imporves the sentence, indicate (d) as your response on the Answer Sheet.

Mahatma Gandhi is called as the Father of the Nation.

A) called Father of the Nation B) called the Father of the Nation
C) Father of the Nation D) No improvement
 
Answer & Explanation Answer: D) No improvement

Explanation:

No improvement required. Sentence is idiomatically correct.

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Filed Under: English
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Q:

Income taxes are allocated to

A) discontinued operations B) prior period adjustments
C) extraordinary items D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Income taxes are allocated to extraordinary items, discontinued operations and prior period adjustments.

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Filed Under: Indian Economy
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Q:

Stoichiometry is based on

A) Law of conservation of energy B) Law of conservation of mass
C) Newton's 1st law D) Kepler's law
 
Answer & Explanation Answer: B) Law of conservation of mass

Explanation:

Stoichiometry is a branch of chemistry deals with the calculations on reactants and products. It is based on the Law of conservation of mass where total mass of reactants is equal to total mass of products.

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Filed Under: Chemistry
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Q:

The House of Representatives has the special power to

A) conduct a trial of impeachment if approved by the Senate. B) impeach a government official who has been found guilty by the Senate.
C) vote to impeach a government official. D) impeach members of the Senate, but not the House.
 
Answer & Explanation Answer: C) vote to impeach a government official.

Explanation:
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Filed Under: Indian Politics
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Q:

Select the antonym of
to perpetuate

A) to eternize B) to canonize
C) to cease D) to bolster
 
Answer & Explanation Answer: C) to cease

Explanation:
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Filed Under: English
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Q:

Which alphabet is a question?

A) X B) B
C) C D) Y
 
Answer & Explanation Answer: D) Y

Explanation:

The alphabet 'Y' resembles same as the questioning word WHY in sounding.

 

Hence,  alphabet Y is a question.

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Filed Under: Logic Puzzles
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