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 :
Lithium aluminium hydride can be prepared from the reaction of :
The alkaline earth metal sulphate(s) which are readily soluble in water is/are :
A. $$\mathrm{BeSO}_{4}$$
B. $$\mathrm{MgSO}_{4}$$
C. $$\mathrm{CaSO}_{4}$$
D. $$\mathrm{SrSO}_{4}$$
E. $$\mathrm{BaSO}_{4}$$
Choose the correct answer from the options given below :
A $$300 \mathrm{~mL}$$ bottle of soft drink has $$0.2 ~\mathrm{M}~ \mathrm{CO}_{2}$$ dissolved in it. Assuming $$\mathrm{CO}_{2}$$ behaves as an ideal gas, the volume of the dissolved $$\mathrm{CO}_{2}$$ at $$\mathrm{STP}$$ is ____________ $$\mathrm{mL}$$. (Nearest integer)
Given : At STP, molar volume of an ideal gas is $$22.7 \mathrm{~L} \mathrm{~mol}^{-1}$$