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Q:

Atomic number of which of the following elements is greater than that of Fluorine?

A) Sodium B) Beryllium
C) Nitrogen D) Boron
 
Answer & Explanation Answer: A) Sodium

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Q:

Electrons can be deflected by which of the following?

A) Only magnetic field B) Only electric field
C) Both magnetic and electric field D) No option is correct
 
Answer & Explanation Answer: C) Both magnetic and electric field

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Q:

The element with the highest electron affinity among halogens is

A) F B) I
C) Cl D) Br
 
Answer & Explanation Answer: C) Cl

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Q:

The series of processes by which nitrogen and its compounds are inter-converted in the environment and in living organisms is called _____ .

A) Absorption of Nitrogen B) Ammonification
C) Nitrogen Fixation D) Nitrogen Cycle
 
Answer & Explanation Answer: D) Nitrogen Cycle

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Q:

An unbalanced chemical equation is called a

A) rough chemical equation B) natural chemical equation
C) complex chemical equation D) skeletal chemical equation
 
Answer & Explanation Answer: D) skeletal chemical equation

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Q:

Atomic explosion is triggered by

A) thermo nuclear reaction B) chemical reaction
C) controlled chain reaction D) uncontrolled chain reaction
 
Answer & Explanation Answer: D) uncontrolled chain reaction

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Q:

What is an endothermic reaction?

A) Reaction in which heat is released. B) Reaction in which heat is absorbed.
C) Reaction in which neither heat is released nor absorbed. D) None of these
 
Answer & Explanation Answer: B) Reaction in which heat is absorbed.

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Q:

Which of the following is not a nitrogenous fertiliser?

A) Ammonium sulphate B) Urea
C) Ammonium nitrate D) Superphospohate
 
Answer & Explanation Answer: D) Superphospohate

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