Gypsum is______?
Gypsum is______?
A. CaSO4
B. CaSO4.1/2H2O
C. CaSO4,2H2O
D. CaSO4.3H2O
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In whole Periodic Table which element Is Most Reducing Agent ?
In whole Periodic Table which element Is Most Reducing Agent ?A. Chlorine
B. lithium
C. Helium
D. NeonLithium (Li) is the strongest reducing agent in the periodic table.
The most reactive allotropic form of phosphorus is________________?
The most reactive allotropic form of phosphorus is________________?A. White
B. Redox potential
C. Black
D. VioletCrystals of Na2CO3. 10H2O when exposed to air_________________?
Crystals of Na2CO3. 10H2O when exposed to air_________________?A. Lose water and remain solid
B. Gain water and remain solid
C. Gain water and become liquid
D. Remains unchangedUrea as a fertilizer contains:____________?
Urea as a fertilizer contains:____________?A. 57% N
B. 73% N
C. 46% N
D. 53% NFollowing are the anions of soap which form Ca and Mg ions which we see as curd in water
Following are the anions of soap which form Ca and Mg ions which we see as curd in waterA. Sodium hexadecanoate
B. Sodium octadecanoate
C. Sodium pentadecanoate
D. Both A & BArgon gas was discovered by_______?
Argon gas was discovered by_______?A. Rayleigh
B. Ramsay
C. Lockerey
D. Dalton