Benzyl isocyanide can be obtained by :
A.
B.
C.
D.
Choose the correct answer from the options given below :
Match List I with List II
List I (Atomic number) |
List II (Block of periodic table) |
||
---|---|---|---|
A. | 37 | I. | p-block |
B. | 78 | II. | d-block |
C. | 52 | III. | f-block |
D. | 65 | IV. | s-block |
Choose the correct answer from the options given below :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In expensive scientific instruments, silica gel is kept in watch-glasses or in semipermeable membrane bags.
Reason (R) : Silica gel adsorbs moisture from air via adsorption, thus protects the instrument from water corrosion (rusting) and / or prevents malfunctioning.
In the light of the above statements, choose the correct answer from the options given below :
Match List I with List II
List I (molecules/ions) |
List II (No. of lone pairs of e$$^-$$ on central atom) |
||
---|---|---|---|
A. | $$\mathrm{IF_7}$$ | I. | Three |
B. | $$\mathrm{ICl}$$$$_4^ - $$ | II. | One |
C. | $$\mathrm{XeF_6}$$ | III. | Two |
D. | $$\mathrm{XeF_2}$$ | IV. | Zero |
Choose the correct answer from the options given below :