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Chemistry

Chemistry
The number of electrons presents in H+ is

two
three
one
zero

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Chemistry
Which one of the following is not a characteristic feature of alloys? They are

Homogeneous systems
Solutions
Compounds
Mixtures

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Chemistry
When cathode rays strike a target of high atomic weight, they give rise to

? and ? rays
?-rays
X-rays
Positive rays

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Chemistry
The nuclear particles which are assumed to hold the nucleons together are

mesons
positrons
neutrons
electrons

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Chemistry
Detergents are

Sodium salts of sulphonic acids
None of these
Sodium salt of benzoic acid
Sodium salts of fatty acids

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Chemistry
Phosphorus is kept in water because

Its ignition temperature is very high
Its ignition temperature is very low
Its critical temperature is high
Its critical temperature is low

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