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Chemistry

Chemistry
Brine refers to :

Starch water
Sweet water
Pure water
Salt water

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Chemistry
Chemical formula of washing soda is

Na2SO4.10H2O
Ca(OH)2
Na2CO3.10H2O
NaHCO3

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Chemistry
In galvanization, iron is coated with

Tin
Copper
Nickel
Zinc

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Chemistry
The mass number of an atom is equal to

the number of nucleons
the number of protons and electrons
the number of protons
the number of neutrons

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Chemistry
Which of the following caused radioactive pollution along the coast of Kerala ?

Thorium
Zinc
Plutonium
Radium

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Chemistry
An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is

53
17
36
19

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