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Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



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Subject: Chemistry
Exam Prep: Bank Exams
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Chemical Formula of Water is _____ .

A) O2H B) OH
C) HO D) H2O
 
Answer & Explanation Answer: D) H2O

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Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) Ar B) HN3
C) CO2 D) C4H6
 
Answer & Explanation Answer: C) CO2

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Sulphur and Chlorine can have what type of a bond?

A) Polar covalent B) Polyionic
C) Non­-polar covalent D) Ionic
 
Answer & Explanation Answer: A) Polar covalent

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Covalent Bond is also called _________.

A) Molecular Bond B) Proton Bond
C) Nucleus Bond D) Electron Bond
 
Answer & Explanation Answer: A) Molecular Bond

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Which of the following constitutes highest percentage of Green House gases?

A) Ethane B) Methane
C) Carbon Dioxide D) Propane
 
Answer & Explanation Answer: C) Carbon Dioxide

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Q:

Benzene is ______ in ethyl alcohol.

A) soluble B) solute
C) insoluble D) insolate
 
Answer & Explanation Answer: C) insoluble

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Q:

The Chemical formula of Ammonium oxalate is _____.

A) NH4C2O4 B) (NH4)2CO4
C) (NH4)2C2O4 D) (NH4)2C2O3
 
Answer & Explanation Answer: C) (NH4)2C2O4

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Which among the following is false about viscosity?

A) Viscosity of gases is less than that of liquids B) Viscosity of gases increases with rise in temperature
C) Viscosity of liquid decreases with rise in temperature D) Viscosity of liquid decreases with increase in pressure
 
Answer & Explanation Answer: D) Viscosity of liquid decreases with increase in pressure

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