Which of the following is an ore of aluminium
Options
(a) Dolomite (b) Azurite (c) Bauxite (d) Malachite
Correct Answer:
Bauxite
Explanation:
No explanation available. Be the first to write the explanation for […]
Wood charcoal is used to decolourise sugar because it
Options
(a) adsorbs coloured material (b) adsorbs decoloured material (c) reduces coloured material (d) none of these
Correct Answer:
adsorbs coloured material
Explanation:
It has […]
Which of the following is not a source of vitamin A?
Options
(a) carrot (b) mango (c) apple (d) yeast
Correct Answer:
yeast
Explanation:
No explanation available. Be the first to write the […]
Wisdom teeth in human are
Options
(a) 3ʳᵈ molar & 4 in number (b) 3ʳᵈ molar & 2 in number (c) 2ⁿᵈ molar & 4 in number (d) 2ⁿᵈ molar & 2 in […]
Separation of amino and carboxylic groups from an amino acid is
Options
(a) amination (b) lysis (c) digestion (d) deamination
Correct Answer:
deamination
Explanation:
No explanation available. Be the first to write the […]
Minamata disease first occurred in
Options
(a) Japan (b) China (c) Korea (d) Russia
Correct Answer:
Japan
Explanation:
Mercury (mercuric chloride) enters into water naturally as well as through industrial effluents. It was […]
5th June is celebrated as
Options
(a) world forest day (b) world environment day (c) world red cross day (d) world food day
Correct Answer:
world environment day
Explanation:
No explanation available. Be […]
The boiling point of glycerol is more than propanol because of
Options
(a) hybridisation (b) arrangement of molecules (c) H-bonding (d) all of these
Correct Answer:
H-bonding
Explanation:
The boiling point of glycerol is […]
Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to minimum intensity is 25:1. The intensities of the sources are in the ratio
Options
(a) (25:1) (b) […]
An ideal gas expands in such a manner that its pressure and volume can be related by equation PV²=constant. During this process, the gas is
Options
(a) Heated (b) Cooled (c) Neither heated […]
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