Urea as a fertilizer contains:____________?
Urea as a fertilizer contains:____________?A. 57% N
B. 73% N
C. 46% N
D. 53% N
B. 73% N
C. 46% N
D. 53% N
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Which of the following methods is used to estimate hydrogen in an organic compound ?
Which of the following methods is used to estimate hydrogen in an organic compound ?A. Combustion method
B. Dumas method
C. Kjeldahls method
D. All of the above methods are for different purposesAll proteins yield ___________ upon complete hydrolysis?
All proteins yield ___________ upon complete hydrolysis?A. Nitrogen
B. Amino acids
C. Carbon and hydrogen
D. SulphurThe longest period in the modern periodic table is___________________?
The longest period in the modern periodic table is___________________?A. 6th
B. 7th
C. 2nd and 3rd both
D. 5thThe diffusion of gases at absolute zero will be________________?
The diffusion of gases at absolute zero will be________________?A. Unchanged
B. Slightly decreased
C. Slightly increased
D. ZeroIn base catalyzed reaction of carbonyl compound the catalyst___________________?
In base catalyzed reaction of carbonyl compound the catalyst___________________?A. increases the nucleophilic character of reagent
B. increases electrophilic character of carbonyl compound
C. acidic character of reagent
D. both a and bWhich one of following is not a property of pure quartz ?
Which one of following is not a property of pure quartz ?A. Coloured solid
B. Brittle
C. Hard
D. All of above