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Chemistry

Chemistry
Piped Natural Gas (PNG) is used for

Mining
Cooking
Anaesthesia
Welding

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Chemistry
The orientation of an atomic orbital is governed by

Magnetic quantum number
Principal quantum number
Spin quantum number
Azimuthal quantum number

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Chemistry
Hard steel contains

0.5 to 1.5 per cent carbon
0.01 to 0.04 per cent carbon
2 to 5 per cent carbon
0.1 to 0.4 per cent carbon

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Chemistry
Bayer's reagent is

Bromine water
Acidified potassium permanganate
Hydrogen peroxide
Alkaline potassium permanganate

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Chemistry
White phosphorus is generally kept under

Kerosene oil
Glycerine
Alcohol
Water

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Chemistry
The pH of human blood is between :

7.5-8
44052
4.5-5
6.5-7

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MORE MCQ ON Chemistry

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