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Chemistry

Chemistry
Milk is

Gel
Suspension
Emulsion
Foam

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Chemistry
Bakelite is a co-polymer of Phenol and

Formaldehyde
Cinnaldehyde
Benzaldehyde
Acetaldehyde

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Chemistry
Maximum permissible concentration of copper in drinking water in mg/L is

2
0.05
0.01
1

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Chemistry
Saline soil contains

Hard rocks
None of these
Lot of moisture
High concentration of salt

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Chemistry
Total number of naturally occurring elements

98
62
92
110

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Chemistry
The most abundant metal in the Earth’s crust is

Zinc
Iron
Copper
Aluminium

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