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Chemistry

Chemistry
The process which does not evolve CO2 in air is

Organic delay
Breathing
Photosynthesis
Burning

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Chemistry
Conduction band electrons have more mobility than holes because they

Have negative charge
Need less energy to move them
Experience collision less frequently
Are lighter

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Aniline and n-hexane
Glycerine and m-toluene
Water and diethyl aniline
Water and Phenol

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Chemistry
Match the sourc in Column B with the product of Column A. (Product) Column B (Source)A. Formic acid1. LemonB. Citric acid 2. TamarindC. Tartaric acid3. Ants

A B C 2 1 3
A B C 2 3 1
A B C 3 1 2
A B C3 2 1

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Chemistry
Rectified spirit is :

95% ethyl alcohol
Methylated spirit
Tincture iodine
100% ethyl alcohol

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Chemistry
Supersonic jet causes pollution by thinning of

O3 layer
O 2 layer
CO2 layer
SO2 layer

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