Environmental C...

Which of the following is the uppermost layer of the atmosphere?

Which of the following practices will not come under green chemistry?

Which of the following practices involve green chemistry?
(i) Substitute CFCs by environmental friendly HFCs and other compounds.
(ii) Replace halogenated solvent by liquid $$CO_{2}$$ for drycleaning.
(iii) Use of $$H_{2}O$$ for bleaching instead of $$Cl_{2}$$
(iv) Making disposable eating utensils and storage jars of plastics.

Which of the following practices will come under green chemistry?

Temperature of troposphere decreases with altitude. This is because of_____.

Air contains $$79$$% $${N}_{2}$$ and $${21}$$% $${O}_{2}$$ by volume. If the barometric pressure is $$750mm$$ $$Hg$$ the partial pressure of oxygen is:
($$d{N}_{2}=1.25, d{O}_{2}=1.42g/m$$)

Choose the correct match

Which of the following are main responsible for ozone depletion?

Region/regions of the atmosphere where temperature decreases with altitude is/are:

Read the following statements
A) High concentration of $${ SO }_{ 2 }$$ in air leads to stiffness of flower buds and fall off from plants.
B) pH of acid rain is less than 5.6.
C) Photochemical smog occurs in cool humid climate.
Correct statements are