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Chemistry

Chemistry
What is the atomic number of Oxygen

12
22
8
5

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Chemistry
Which of the following partial miscible liquid pairs has both lower and upper critical solution temperature

Water and Phenol
Water and diethyl aniline
Glycerine and m-toluene
Aniline and n-hexane

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Cement
Gun powder
Paint
Glass

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Chemistry
Which of the following has least negative electron gain enthalpy

Cl
F
P
S

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.4 mole
0.5 mole
0.25 mole
0.2 mole

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Chemistry
The new strain of bacteria produced by biotechnology in alcohol industry is

Escherichia coli
Pseudomonas putida
Bacillus subtilis
Saccharomyces cerevisiae

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MORE MCQ ON Chemistry

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