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Chemistry

Chemistry
The substance which does not expand on going from liquid state to solid state is

Aluminium
Water
Type metal
Cast-iron

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Chemistry
Sea weeds are important source of

Iodine
Bromine
Iron
Chlorine

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Chemistry
Which of the following molecules has a bond order of 2.5

CO
HCL
F2
NO

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Chemistry
The inherited traits of an organism are controlled by

DNA molecules
nucleotides
enzymes
RNA molecules

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

Infinity
4J
2J

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Chemistry
Terylene is a condensation polymer of ethylene glycol and which acid?

Salicylic acid
Terephthalic acid
Benzoic Acid
Phthalic acid

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