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Chemistry

Chemistry
A matured mammalian cell without nucleus is

Erythrocyte
Oocyte
Spermatozoan
Lymphocyte

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Chemistry
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

6.023 x 1019
6.023 x 1023
1.568 x 103
4.84 x 1017

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Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Nitrozen
Oxyzen
Carbon
Hydrogen

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Chemistry
Which of the following is not a precious/semi-precious stone?

Sapphire
Pearl
Ruby
Emerald

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Evapotranspiration
Effluents
Auatic fungi
Aquatic macrophytes

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

92
89
86
96

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MORE MCQ ON Chemistry

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