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Chemistry

Chemistry
Which among the following is found in chlorophyll ?

Mg2+
A l3+
Ca2+
Fe2+

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Chemistry
Mercury is a :

Solid metal
Liquid metal
Solid non-metal
Liquid non-metal

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Chemistry
Which of the following methods is used in determining the number average molar mass of a macromolecule

Sedimentation equilibrium
Viscosity
Osmotic pressure
Light scattering

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Chemistry
Milk tastes sour when it is left in open for some time. This happens due to the formation of

Citric acid
Lactic acid
Carbonic acid
Acetic acid

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Chemistry
What is the covalency of nitrogen in ammonia molecule

5
3
4
2

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Chemistry
The most malleable metal is

gold
iron
silver
platinum

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MORE MCQ ON Chemistry

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