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Chemistry

Chemistry
Which of the following is not present in German-silver?

Copper
Nickel
Zinc
Silver

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Chemistry
Water gas is the mixture of

Carbon dioxide and hydrogen
Carbon monoxide and hydrogen
Carbon monoxide and nitrogen
Carbon dioxide and nitrogen

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Chemistry
The “King of Metals” is :

Aluminium
Silver
Gold
Iron

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Chemistry
The metal present in vitamin B12 is

Fe
Mg
Mo
Co

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Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

H2
Cl2
O2
SO2

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Chemistry
Interveinal necrotic spots on leaves appear due to

O3injury
NO2injury
HF injury
SO2injury

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MORE MCQ ON Chemistry

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