Everyday Science
In which of the following options is the chemical compound and tis common name matched?
Sodium Bicarbonate —-> Baking Soda
Nitrous Oxide —-> Laughing Gas
Calcium Carbonate —-> Limestone
Sodium Hydroxide —-> Washing Soda
Sodium Hydroxide —-> Washing Soda
Sodium Hydroxide is commonly known as Caustic SodaIts Chemical formula is NaOHIt is used for manufacturing of soaps and detergents
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
In the body, the weight of blood is about
A. 1/12th of body
B. 1/5th of body
C. 1/8th of body
D. 1/4th of body
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
The energy stored in coal is
A. kinetic energy
B. potential energy
C. chemical energy
D. nuclear energy
A human breath per minute is
A. 16-30 times
B. 16-20 times
C. 15-20 times
D. 15-18 times
Symbol of Copper is
A. Ca
B. Cl
C. Co
D. Cu
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