Chemical composition of cinnabar is____________________?
Chemical composition of cinnabar is____________________?
A. FeS2
B. HgS
C. PbS
D. ZnS
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Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?
Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?A. 2.0 x 10-10 mol dm-3
B. 1.414 x 10-5 mol dm-3
C. 1.0 x 10-10 mol dm-3
D. 1.0 x 10-5 mol dm-3In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?
In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?A. 2
B. 3
C. 4
D. 6Which molecule has the highest bond energy among the halogens_________________?
Which molecule has the highest bond energy among the halogens_________________?A. Fluorine
B. Chlorine
C. Iodine
D. BromineVinyl acetylene combines with hydrochloric acid produces___________________?
Vinyl acetylene combines with hydrochloric acid produces___________________?A. Diviny1 acetylene
B. Ethylidine dichloride
C. Chloroprene
D. 1 – 3 – 3 – trichloro butaneWhen chlorine is passed through hot solution of caustic soda the reaction is said as___________________?
When chlorine is passed through hot solution of caustic soda the reaction is said as___________________?A. Displacement
B. Reduction
C. Disproportionation reaction
D. Double displacement reactionWhich one does not exhibit aldol condensation___________________?
Which one does not exhibit aldol condensation___________________?A. Ethanal
B. Acetone
C. Benzaldehyde
D. Butanone