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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 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:

Pentlandite is an ore/mineral of _______.

A) Titanium B) Nickel
C) Uranium D) Zinc
 
Answer & Explanation Answer: B) Nickel

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Q:

Chromite is an ore/mineral of

A) Zinc B) Uranium
C) Chromium D) Titanium
 
Answer & Explanation Answer: C) Chromium

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Q:

The reactions in which oxidation and reduction occur simultaneously are called _______.

A) Feral reactions B) Redox reactions
C) Demug reactions D) Kerol reactions
 
Answer & Explanation Answer: B) Redox reactions

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Q:

The common name of sodium tetraborate decahydrate is _____.

A) epsom salt B) gypsum
C) Borax D) galena
 
Answer & Explanation Answer: C) Borax

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Q:

A solution that is at equilibrium must be

A) saturated B) concentrated
C) unsaturated D) dilute
 
Answer & Explanation Answer: A) saturated

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Q:

Which molecule contains a polar covalent bond?

A) NBr3 B) C2H4
C) ZnS D) AgL
 
Answer & Explanation Answer: A) NBr3

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