Ncert Solutions Chemistry Class 11th

The total number of acidic oxides from the following list is NO, N₂O, B₂O₃, N₂O₅, CO, SO₃, P₄O₁₀

The correct order of density is

High purity (> 99.95%) dihydrogen is obtained by

$K_{a_1},K_{a_2}and{K}_{a_3}$ are the respective ionization constants for the following reaction (a), (b) and (c).

(A) $H_2{C}_2{O}_4?H^{+}+H{C}_2{O}_4^{-}$

(B) $H{C}_2{O}_4^{+}?H^{-}+C_2{O}_4^{2-}$

(C) $H_2{C}_2{O}_4?2H^{+}+C_2{d}_4^{2-}$

Which of the following is structure of a separating funnel?

Given below are two statements:

Statement I : Classical smog occurs in cold humid climate. It is reducing mixture of smoke, fog and sulphur dioxide.

Statement II : Photochemical smog has components, ozone, nitric oxide, acrolein formaldehyde, PAN etc.

In the light f the above statements, choose the most appropriate answer from the option given below.

Match the List-I with List-II

The bond order and the magnetic characteristics of ${\mathrm{C}\mathrm{N}}^{-}$ are

Identify the correct labels of $\mathrm{A},\mathrm{B}$ and $\mathrm{C}$ in the following graph from the options given below

Root mean square speed $\left({\mathrm{V}}_{\mathrm{r}\mathrm{m}\mathrm{s}}\right)$ ; most probable speed $\left({\mathrm{V}}_{\mathrm{m}\mathrm{p}}\right)$ ; Average $\mathrm{s}\mathrm{p}\mathrm{e}\mathrm{e}\mathrm{d}?\left({\mathrm{V}}_{\mathrm{a}\mathrm{v}}\right)$

Within each pair of elements $\mathrm{F}\&\mathrm{C}\mathrm{l},\mathrm{S}\&\mathrm{S}\mathrm{e}$ and $\mathrm{L}\mathrm{i}\&\mathrm{N}\mathrm{a}$ , respectively, the elements that release more energy upon an electron gain are