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Chemistry

Chemistry
Chemical formula of washing soda is

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

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Chemistry
L.P.G. is mostly liquefied

Oxygen
Butane
Methane
Hydrogen

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Chemistry
The Bhopal tragedy was caused by the gas

Chlorine
Carbon monoxide
Phosgene
Methyl isocyanate

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Chemistry
Silver nitrate solution is kept in brown bottles in laboratory because

It reacts with ordinary white bottles
Brown bottles stops the passage of light through it
Brown bottles do not react with it
Brown bottles react with it

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Chemistry
Phosphorus is kept in water because

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

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Chemistry
Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium

B, D and E
A, B, C, D and E
A, C and E
A and C

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