Ncert Solutions Chemistry Class 11th

$2NOCl(g)?2NO(g)+C{l}_2(g)$

In an experiment 2.0 mole of NOCl was placed in a non-litre flask and the concentration of NO after equilibrium established, was found to be 0.4 mol/L. The equilibrium constant at 30°C is__________× 10^-4

The ammonia $\left({\mathrm{N}\mathrm{H}}_3\right)$ released on quantitative reaction of $0.6\mathrm{g}$ urea $\left({\mathrm{N}\mathrm{H}}_2{\mathrm{C}\mathrm{O}\mathrm{N}\mathrm{H}}_2\right)$ with sodium hydroxide $\left(\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}\right)$  can be neutralized by

Among statements (a) - (d), the correct ones are
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) like hydrogen peroxide, compounds such as ${\mathrm{K}\mathrm{C}\mathrm{l}\mathrm{O}}_3,\mathrm{P}\mathrm{b}{\left({\mathrm{N}\mathrm{O}}_3\right)}_2$ and ${\mathrm{N}\mathrm{a}\mathrm{N}\mathrm{O}}_3$  when heated liberated dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide
(d) Hydrogen peroxide is used for the manufacture of sodium perborate
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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.