Chemistry Questions

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:

Metals react with sodium hydroxide to produce ___________.

A) oxygen gas B) sodium
C) water D) hydrogen gas
 
Answer & Explanation Answer: D) hydrogen gas

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Q:

Name the gas used in preparation of bleaching powder

A) Oxygen B) Hydrogen
C) Nitrogen  D) Chlorine
 
Answer & Explanation Answer: D) Chlorine

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0 1723
Q:

Which of the following is used as anaesthetics?

A) N2 B) N2O
C) CH4 D) CO2
 
Answer & Explanation Answer: B) N2O

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0 1721
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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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:

Manganite is an ore/mineral of

A) Beryllium B) Chromium
C) Manganese D) Copper
 
Answer & Explanation Answer: C) Manganese

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1 1712
Q:

Which gas is released when water is added to bleaching powder?

A) Oxygen B) Hydrogen
C) Carbon dioxide D) Chlorine
 
Answer & Explanation Answer: D) Chlorine

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