Which of the following is non spontaneous cell?
Which of the following is non spontaneous cell?
A. Electrolytic cell
B. Galvanic cell
C. Daniel cell
D. Not
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The phenomenon in which a compound exists in two or more crystalline forms is called ________________?
The phenomenon in which a compound exists in two or more crystalline forms is called ________________?A. Isomorphism
B. Polymorphism
C. Anisotropy
D. AllotropyA helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?
A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ?A. Beta particle
B. Gamma particle
C. Alpha particle
D. Negative particleThe Lewis acids are__________________?
The Lewis acids are__________________?A. Electron deficient
B. Electron rich
C. Octet is complete
D. No such acids existWhich one of the following looks odd__________________?
Which one of the following looks odd__________________?A. H2SO4
B. KMnO4
C. H2S
D. K2CrO4Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?
Distance at which attractive forces of hydrogen overcome repulsive forces is __________ ?A. 75.2pm
B. 75.3pm
C. 75.5pm
D. 75.4pmWhich one is the right value for R ?
Which one is the right value for R ?A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1