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1.
Which one of the following is used as a mordant in dyeing and tanning industry?
2.
Which one of the following polymeric materials is used for making bullet proof jacket?
3.
The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc., is
4.
The chemical used as a 'fixer' in photography is
5.
Statement I: Coal-based thermal power stations contribute to acid-rain.
Statement II: Oxides of carbon are emitted when coal bums.
Statement II: Oxides of carbon are emitted when coal bums.
6.
Salts of which of the following elements provide colours to fireworks?
7.
Statement I: Phenyl is used as a household germicide.
Statement II: Phenyl is phenol derivative and phenol is an effective germicide.
Statement II: Phenyl is phenol derivative and phenol is an effective germicide.
8.
Consider the following chemicals
1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene
Which of the above/is are used as dry cleaning chemical?
1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene
Which of the above/is are used as dry cleaning chemical?
9.
Which one of the following is another name of RDX?
10.
Which one of the following is used as an explosive?