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Chemistry

Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Tomato juice
Vinegar
Lemon
Kerosene

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Chemistry
The scientist who experimentally proved the existance of positron is

Fermi
Bohr
Bethe
Anderson

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Chemistry
Air shows the property of

None of these
O2
N2
Both A and B

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Chemistry
Brass is made of

Tin and lead
Copper and tin
Copper, tin and zinc
Copper and zinc

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

Cal2
Cacl2
CaF2
CaBr2

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Chemistry
Threshold limit value of copper in the atmospheric air is

5.0 mg/m3
1.0 mg/m3
0.001 mg/m3
0.01 mg/m3

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MORE MCQ ON Chemistry

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