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Chemistry

Chemistry
Which of the following has the highest lattice energy

RbF
KF
NaF
CsF

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Chemistry
Concentration of a material which is lethal to 50% animal is called

ADI
LC50
NOAEL
LD50

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Chemistry
Which of the following is used to remove ink and rust stains on cloth?

Kerosene oil
Ether
Oxalic acid
Alcohol

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Chemistry
Diamond is lustrous because

It is pure
Its refractive index is high
It is hard
It is colourless

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Chemistry
Type metal used in printing press is an alloy of

Lead and copper
Lead and bismuth
Lead and zinc
Lead and antimony

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Chemistry
The inherited traits of an organism are controlled by

enzymes
RNA molecules
nucleotides
DNA molecules

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