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Chemistry

Chemistry
The oil used in the froth floatation process is

pine oil
olive oil
kerosene oil
coconut oil

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Chemistry
The nucleus of an atom consists of

protons and neutrons
electrons and neutrons
All of these
electrons and protons

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HBr
HCI
HF
HI

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Chemistry
In which of the following substances all carbon atoms are quaternary in nature ?

Diamond
Teflon
Graphite
Napthalene

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Chemistry
What happens when a chemical bond is formed ?

Energy is neither released nor absorbed
Energy is always absorbed
More energy is released than is absorbed
Energy in always released

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Chemistry
Vinegar is an aqueous solution of

Hydrochloric acid
Oxalic acid
Acetic acid
Citric acid

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