Match List - I with List - II.
List - I | List - II | ||
(a) | 2SO2 (g)+O2 (g) →2SO3 | (i) | Acid rain |
(b) | HOCl(g) h\(^\nu\)→OH+Cl | (ii) | Smog |
(c) | CaCO3+H2SO4→CaSO4+H2O+CO2 | (iii) | Ozone |
(d) | NO2(g) \(^{h\nu}\)→NO(g)+O(g) | (iv) | Tropospheric |
Choose the correct answer from the options given below.
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
The correct answer is option (D) : (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector
\(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :
There is a number of factors that contribute to the pollution of the environment. Some of the major causes of atmospheric pollution are given below -