MCQ
Identify $(B)$
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In a crystal cations and anions are held together by
A mixture of $100\, m\, mol$ of $Ca(OH)_2$ and $2\, g$ of sodium sulphate was dissolved in water and the volume was made upto $100\, mL$. The mass of calcium sulphate formed and the concentration of $OH^-$ in resulting solution, respectively are
→(Molar mass of $Ca(OH)_2, Na_2SO_4$ and $CaSO_4$ are $74, 143$ and $136\, g\, mol^{-1}$ respectively; $K_{sp}$ of $Ca(OH)_2$ is $5.5 \times 10^{-6}$)
Based on Heisenberg's uncertainty principle, the uncertainty in the velocity of the electron to be found within an atomic nucleus of diameter $10^{-15} \mathrm{~m}$ is ............. $\times 10^9 \mathrm{~ms}^{-1}$ (nearest integer)
→[Given : mass of electron $=9.1 \times 10^{-31} \mathrm{~kg}$, Plank's constant $(\mathrm{h})=6.626 \times 10^{-34} \mathrm{JS}$ ]
(Value of $\pi=3.14$ )
Atomic weight of which set of elements were corrected by Mendeleev?
The element that does $NOT$ show catenation is
→One mole of ice is converted into water at $1$ $atm$ & $273\, K$. The entropies of $H_2O(s)$ and $H_2O(l)$ are $38.2$ and $60.01\, J\, mol^{-1} \,K^{-1}$ respectively the enthalpy change for the conversion is ......$J \,mol^{-1}$
→The configurations of the carbon atoms $C_2$ and $C_3$ in the following compound are respectively
→Match List$-I$ with List$-II$.
→| List$-I$ | List$-II$ |
| $A$ Coke | $I$ Carbon atoms are $sp ^3$ hybridised |
| $B$ Diamond | $II$ Used as a dry lubricant |
| $C$ Fullerene | $III$ Used as a reducing agent |
| $D$ Graphite | $IV$ Cage like molecules |
Choose the correct answer from the options given below :
The electronic configuration with the highest ionization enthalpy is
Match List - $I$ with List - $II$.
→| List - $I$ | List - $II$ |
| $ICI$ | $\mathrm{T}$-Shape |
| $\mathrm{ICI}_3$ | Square pyramidal |
| $\mathrm{CIF}_5$ | Pentagonal bipyramidal |
| $\mathrm{IF}_7$ | Linear |
Choose the correct answer from the options given below: