Identify X, Y and Z in the following reaction. (Equation not balanced):
$ \text{CIO}_{} + \text{NO}_2 \rightarrow \underline{\text{X}} \xrightarrow{\text{H}_2\text{O}} \underline{\text{Y}} + \underline{\text{Z}} $
\( \mathrm{X = ClNO_2,\ Y = HCl,\ Z = HNO_3} \)
\( \mathrm{X = ClONO_2,\ Y = HOCl,\ Z = HNO_3} \)
\( \mathrm{X = ClONO_2,\ Y = HOCl,\ Z = NO_2} \)
\( \mathrm{X = ClNO_3,\ Y = Cl_2,\ Z = NO_2} \)
The group of chemicals used as pesticide is:
A. Ammonium salts produce haze in atmosphere.B. Ozone gets produced when atmospheric oxygen reacts with chlorine radicals.C. Polychlorinated biphenyls act as cleansing solvents.D. ‘Blue baby’ syndrome occurs due to the presence of excess of sulphate ions in water.Choose the correct answer from the options given below:
Which of the following are the Green house gases ?A. Water vapourB. OzoneC. \( \mathrm{I_2} \)D. Molecular hydrogenChoose the most appropriate answer from the options given below :
Formation of photochemical smog involves the following reaction in which A, B and C are respectively.\( (i)\; \mathrm{NO_2} \xrightarrow{h\nu} A + B \) \( (ii)\; B + \mathrm{O_2} \longrightarrow C \) \( (iii)\; A + C \longrightarrow \mathrm{NO_2} + \mathrm{O_2} \) Choose the correct answer from the options given below:
The possibility of photochemical smog formation is more at.
The water quality of a pond was analysed and its BOD was found to be \( 4 \). The pond has :
Match List I with List II.
Choose the correct answer from the options given below:
Given below are two statements:Statement I: If BOD is \( 4 \, \text{ppm} \) and dissolved oxygen is \( 8 \, \text{ppm} \), then it is a good quality water.Statement II: If the concentration of zinc and nitrate salts are \( 5 \, \text{ppm} \) each, then it can be a good quality water.In the light of the above statements, choose the most appropriate answer from the options given below:
The concentration of dissolved Oxygen in water for growth of fish should be more than $\underline{\text{X}}$ ppm and Biochemical Oxygen Demand in clean water should be less than $\underline{\text{Y}}$ ppm. $\text{X}$ and $\text{Y}$ in ppm are, respectively.
Some reactions of \( \mathrm{NO_2} \) relevant to photochemical smog formation are:Identify \( A \), \( B \), \( X \) and \( Y \).
Match List-I with List-II.
Correct statement is:
The industrial activity held least responsible for global warming is:
Which of the following compounds is an example of Freon?
