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Chemistry

Chemistry
Which among the following is found in chlorophyll ?

Mg2+
A l3+
Fe2+
Ca2+

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Chemistry
An acid having basicity one is

Phosphoric acid
Disodium hydrogen phosphate
Sodium phosphate
Sodium dihydrogen phosphate

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Chemistry
Benzene cannot undergo :

Elimination
Oxidation
Addition
Substitution

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Chemistry
The chemical that is used to ripen mangoes is

Calcium carbonate
Calcium chloride
Calcium carbide
Calcium sulphide

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Chemistry
The gas produced in marshy places due to decomposition of vegetation is

Methane
Carbon monoxide
Carbon dioxide
Sulphur dioxide

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Chemistry
Saccharin is made up of

Butane
Phenol
Toluene
Propane

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MORE MCQ ON Chemistry

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