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Q:

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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Q:

The Chemical formula of Ammonium dichromate is _____.

A) (NHF4)2Cr2O7 B) (NH4)CrO3
C) (NH4)Cr2O3 D) (NH4)2Cr2O3
 
Answer & Explanation Answer: A) (NHF4)2Cr2O7

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Q:

What is the base of the Octal Numeral System?

A) 8 B) 16
C) 32 D) 64
 
Answer & Explanation Answer: A) 8

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Q:

Why is Carbon Monoxide a pollutant ?

A) Reacts with haemoglobin B) Makes nervous system inactive
C) It reacts with Oxygen D) It inhibits glycolysis
 
Answer & Explanation Answer: A) Reacts with haemoglobin

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Q:

Sour taste of lemon is due to the presence of which of the following ?

A) Citric acid B) Acetic acid
C) Oxalic acid D) Formic acid
 
Answer & Explanation Answer: A) Citric acid

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Q:

Which of the following elements has the lowest melting point?

A) Zinc B) Titanium
C) Sulphur D) Fluorine
 
Answer & Explanation Answer: D) Fluorine

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Q:

Which of the following types of water is known to be absolutely free from any impurity?

A) Mineral Water B) Distilled Water
C) Spring Water D) Boiled Water
 
Answer & Explanation Answer: B) Distilled Water

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Q:

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

 

A) Sodium, Potassium B) Magnesium, Aluminium
C) Sodium, Chlorine D) Aluminium, Chlorine
 
Answer & Explanation Answer: C) Sodium, Chlorine

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