Benzene is a good solvent for__________________?
Benzene is a good solvent for__________________?
A. fats
B. resins
C. iodine
D. all the above
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Argon gas was discovered by_______?
Argon gas was discovered by_______?A. Rayleigh
B. Ramsay
C. Lockerey
D. DaltonCement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?
Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?A. Lime (CaO)
B. Silica (SiO2)
C. Alumina (Al2O3)
D. Magnesia (MgO)Separation of a solid from its hot saturated solution by cooling is called__________________?
Separation of a solid from its hot saturated solution by cooling is called__________________?A. vapourization
B. solvent extraction
C. filtration
D. crystallizationThe element of group VIA which is a non-metal is________________?
The element of group VIA which is a non-metal is________________?A. S
B. Se
C. Te
D. Ponergy of atom in compound is___________________?
nergy of atom in compound is___________________?EA. Higher than individual
B. Lesser than individual
C. No change
D. Impossible to predictWhich one of the following salt does not hydrolyzed________________?
Which one of the following salt does not hydrolyzed________________?A. Na2SO4
B. AlCl3
C. CuSO4
D. NH4Cl