Positive rays give flash on________________?
Positive rays give flash on________________?
A. AgNO3 plate
B. AgCl plate
C. ZnO
D. ZnS
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Grignard reagent gives carboxylic acid with____________?
Grignard reagent gives carboxylic acid with____________?A. CO2
B. CH3CHO
C. COC2
D. HCNIn diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?
In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?A. Hydroxide ions to reach anode
B. Chlorine gas to mix
C. Cathode to decay
D. All of the aboveKa
Ka<10-3 means______________?A. Very strong base
B. Very weak acid
C. Very strong acid
D. Very strong saltmoles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?
moles of each aluminium and oxygen react with each other to produce aluminium oxide. The amount of product formed is______________________?A. 0.18 mole
B. 0.27 mole
C. 0.24 mole
D. 0.09 moleFor which of the following compounds the term empirical formula cannot be applied ?
For which of the following compounds the term empirical formula cannot be applied ?A. NaCl
B. H2O
C. CCI4
D. It can be applied to all mentioned aboveOxidation state +1 for phosphorous is found in___________?
Oxidation state +1 for phosphorous is found in___________?A. H3PO3
B. H3PO4
C. H3PO2
D. H2P2O7