Q:

What is formed when helium atom loses one electron?

A) Proton	B) Positive helium ion
C) Negative helium ion	D) Alpha particle

Answer & Explanation Answer: B) Positive helium ion

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Filed Under: Chemistry
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1 45833

Q:

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and II

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0 45826

Q:

What value should come in place of the question mark (?) in the following question?

$\frac{5^{2} x 14 + 1450}{18} = 1998 \div ?$

A) 18.25	B) 19.98
C) 34.58	D) 65.25

Answer & Explanation Answer: B) 19.98

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Exam Prep: GATE , Bank Exams

0 45736

Q:

Plants of which group are predominantly aquatic?

A) Thallophyta	B) Bryophyta
C) Pteridophyta	D) No option is correct

Answer & Explanation Answer: A) Thallophyta

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Q:

Elements having same atomic numbers but different mass number are called ______.

A) isotones	B) Isotopes
C) isomopes	D) isobar

Answer & Explanation Answer: B) Isotopes

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Q:

Who first discovered the every eighth element had properties similar to that of the first?

A) Newlands	B) Moseley
C) Dobereiner	D) Mendeleev

Answer & Explanation Answer: A) Newlands

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1 45663

Q:

An electron loses potential energy when it

A) shifts to a more electronegative atom.	B) increases its kinetic energy.
C) shifts to a less electronegative atom.	D) increases its activity as an oxidizing agent.

Answer & Explanation Answer: A) shifts to a more electronegative atom.

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1 45641

Q:

Match the correct Memory units.

A) a-r, b-p, c-s, d-q	B) a-p,b-s, c-q, d-r
C) a-r, b-s, c-q, d-p	D) a-r, b-q, c-s, d-p

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