Exams Questions and Answers

Q:

Atoms of the same element can differ in

A) Atomic number	B) Atomic mass
C) electrons	D) None of the above

Answer & Explanation Answer: B) Atomic mass

Explanation:

Atoms of the same element can have same atomic number and number of electrons since, the atomic number is the number of protons and the number of protons and eectrons are the same in an element.

Hence, the atoms of the same element may differ in their atomic mass since it depends on the number of neutrons it holds and such atoms are called isotopes.

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Filed Under: Chemistry
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Q:

What is the unit place digit in the expansion of $7^{73}$ ?

A) 1	B) 3
C) 7	D) 9

Answer & Explanation Answer: C) 7

Explanation:

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Filed Under: Numbers
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Q:

Which of the following elements has the lowest melting point?

A) Chromium	B) Hydrogen
C) Zinc	D) Silver

Answer & Explanation Answer: B) Hydrogen

Explanation:

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Q:

A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence in Indirect/Direct Speech.

Rohan said , "I am going"

A) Rohan had said he is gone.	B) Rohan is going.
C) Rohan said that he is gone.	D) Rohan said that he was going.

Answer & Explanation Answer: D) Rohan said that he was going.

Explanation:

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Filed Under: English
Exam Prep: Bank Exams , CAT

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Q:

A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).

A) 40	B) 10
C) 20	D) 80

Answer & Explanation Answer: B) 10

Explanation:

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Filed Under: Physics
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Q:

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence inPassive/Active Voice.

Ram loves Sita.

A) Sita was loved by Ram	B) Sita is loved by Ram
C) Sita loves by Ram	D) Sita loved by Ram

Answer & Explanation Answer: B) Sita is loved by Ram

Explanation:

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Q:

In a class of 60 students there are 33 girls. The average weight of these girls is 62 Kg and average weight of the full class is 66.5 kg. What is the average weight of the boys of the class?

A) 72 kg	B) 71 kg
C) 70 kg	D) 73 kg

Answer & Explanation Answer: A) 72 kg

Explanation:

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Filed Under: Average
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Q:

On selling 30 caps, a shopkeeper earns profit equal to the selling price of 3 caps. What is the profit percentage?

A) 12.5	B) 11.11
C) 10	D) 14.28

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