Lead accumulators are_______________?
Lead accumulators are_______________?
A. secondary cell
B. primary cell
C. voltaic cell
D. both A & C
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What catalyst is employed when benzene is prepared from acetylene at 70°C?
What catalyst is employed when benzene is prepared from acetylene at 70°C?A. Cr2O3 + A2O3 + SiO2
B. Raney nickel
C. Organo-nickel
D. Ni 250 – 300°CThe most reactive allotropic form of phosphorus is________________?
The most reactive allotropic form of phosphorus is________________?A. White
B. Redox potential
C. Black
D. VioletReaction which proceeds in both directions is called_______________?
Reaction which proceeds in both directions is called_______________?A. reversible
B. irreversible
C. spontaneous
D. non-spontaneousReading of a Barometer going down is an indication of:___________?
Reading of a Barometer going down is an indication of:___________?A. Snow
B. Storm
C. Intense heat
D. RainfallWater molecule is________?
Water molecule is________?A. V-shaped
B. Angular
C. Pyramidal
D. Triangular planerThe energy of one mole of photons of radiation, whose frequency is 4×10 14 Hz, is ___________?
The energy of one mole of photons of radiation, whose frequency is 4×10 14 Hz, is ___________?A. 159.6kJ
B. 135.5 KJ
C. 110.5 KJ
D. 80.4 KJ