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Chemistry

Chemistry
Chemical formula of washing soda is

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

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Chemistry
Which of the following pollutants is main product of automobile exhaust ?

CO
Hydrocarbons
NO
CO2

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Chemistry
The alkaloid naturally found in coffee, cocoa and cola nut is

Morphine
Caffeine
Tannin
Cocaine

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Chemistry
Iodex, a pain relief balm, has the smell of ________ .

Methyl salicylate
Ethyl salicylate
Butyl salicylate
Propyl salicylate

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Absorption spectra
Emission spectra
Fluorescence
Raman spectra

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Chemistry
The heat required to raise the temperature of body by 1 K is called

specific heat
thermal capacity
water equivalent
None of these

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MORE MCQ ON Chemistry

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