Questions

The atmospheric pressure at the surface of the Earth is due to gravitational pull of the earth and is about 14.7 psi.

That means that the weight of a column of air which has a cross section of 1 square inch and which stretches from the surface of the Earth to space is 14.7 pounds. 

 ZA = 88  ; ZB = 52

So formula of compound is AB52 

i.e., A2B5.

The monomeric unit of orlon polymer is Acrylonitrile. Orlon is also known as Polyacrylonitrile (PAN). 

∆Tf = kf.m 

for ethylene glycol in aq. solution

 $$\begin{gathered} ∆Tf = kf wmol.wt × 1000wt. of solvent \\ 6 = 1.86 x w x 100062 x 4000 \end{gathered}$$

=> w = 800 g

So, the weight of solute should be more than 800 g.

Answer: D

Explanation:    The diagram contains 3 sets of 4 letters - one set of outer corner letters, one set of inner corner letters, and one set of letters on each side of the square. The numerical values of the letters in each set add up to 40.

The Abohar Wildlife Sanctuary is located in the Fazilka District of Punjab. The formation of sanctuary relates to a unique success story of wildlife conservation in which people of Bishnoi community united themselves for protecting the Black Buck which is regarded as a sacred animal by them. It is also the State Animal of Punjab. It is home to several varieties of flora and fauna viz. Albizia lebbeck, Acacia nilotica, Azadirachata indica, A. tortilis, Wild Boar, Blue Bull, Porcupines, Hare, Jackal, etc.