(i) Nitrogen atom in ammonia undergoes............hybridisation and the geometry of the molecule is.............
(ii) For a first order reaction, the unit of rate is............and that of rate constant is.............
(iii) When acetamide is treated with bromine and caustic soda, it gives............as the main product and the reaction is called.............
(iv) ............is an example of trihydric alcohol and............is an example of dihydric alcohol.
(v) Aqua regia is a mixture of............and............in the ratio of3:1.
Complete the following statements by selecting the correct alternative from the choice given:-
Of the following compunds, the one which is a Lewis add is:
PCl3
AlCl3
NCl3
NCl3
Match the following:
| A. Biuret | (i) DNA |
| B. Urotropine | (ii) Amines |
| C. Purine | (iii) Urea |
| D. Purine | (iv) Formaldehyde |
| E. Hinsberg’s reagent | (v) Sulphur |
Complete the following statements by selecting the correct alternative from the choice given:-
Among the following compounds, the one showing geometric isomerism is:
2-chloro propane
2-bromo-2-chlorobutane
1,2dichloro ethene
1,2dichloro ethene
Answer the following questions:
0.1 M urea solution shows less depression in freezing point than 0.1 M MgCl2 solution. Explain.
Answer the following questions:
If neutral litmus solution is added to sodium acetate solution, what will you observe and why?
Complete the following statements by selecting the correct alternative from the choice given:-
Out of the following solutions, the one having the highest boiling point will be:
0.1 M NaCl
0.1 M BaCl2
0.IMKNO3
0.IMKNO3
Complete the following statements by selecting the correct alternative from the choice given:-
When zinc granule is dipped into copper sulphate solution, copper is precipitated because:
Both, copper and zinc have a positive reduction potential.
Reduction potential of copper is higher than that of zinc.
Reduction potential of zinc is higher than that of copper.
Reduction potential of zinc is higher than that of copper.
Complete the following statements by selecting the correct alternative from the choice given:-
75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed?
24 minutes
15 minutes
8 minutes
8 minutes
