19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Eutrophication is due to (AMU 2011) (a) SO ion present in water
Photochemical smog is caused by light mediated reaction between : (AIPMT 2012)
Which one of the following statements regarding photochemical smog is not correct? (CBSE, AIPMT 2012)
BOD stands for (AMU 2012)
Assertion (A): CO and NO combine with haemoglobin. Reason (R): Both have equal affinity for haemoglobin. (AIIMS 2012)
Which one of the following statements is not true? (Karnataka NEET 2013)
Assertion (A): Nitrogen oxides are one of the components of photochemical smog. Reason (R): Vehicular pollution is a major source of nitrogen oxides (AIIMS 2013)
Which one of the following is not a common component of photochemical smog? (CBSE AIPMT 2014)
Among the following, the one which is not a ‘greenhouse gas’, is (Kerala CEE 2014)
Assertion: (A) London smog is produced when carbon soot particles combine with gaseous oxides of sulphur. Reason: Presence of carbon particles and SO2 makes it reducing in nature. (AIIMS 2017)
Which of the following is a sink for CO? (NEET 2017)
Which of the following chemicals are used to manufacture methyl isocyanate that caused “Bhopal tragedy”? (JIPMER 2018) (i) Methylamine (iii) Phosgene (iii) Phosphine (iv) Dimethylamine
Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity? (NEET 2018)
Among the following, the one that is not a greenhouse gas is (NEET 2019)
Assertion: Photochemical smog results from the action of sunlight on NOx and hydrocarbons. Reason: It occurs in warm, dry and sunny climate. (AIIMS 2019)
Which of the following statement is NOT true about acid rain? (NEET 2020)
The incorrect statement about carbon monoxide is (NEET 2020)
Match list-I with list-II (NEET 2021) List – I List – II (a) 2SO g O g 2SO g -> (i) Acid rain (b) hv HOCl g OH Cl -> (ii) Smog (c) CaCO H SO CaSO H O CO -> (iii) Ozone depletion (d) hv NO g NO g O g -> …
The pollution due to oxides of sulphur gets enhanced due to the presence of:
In blood, when concentration of carboxyhaemoglobin reaches about 3-4%, the oxygen carrying capacity of blood …A… Here, A refers to
What is true about CO gas?
Carbon monoxide is mainly released into air by :
Which of the following statement(s) is//are true about carbon monoxide?
Which of the following are the harmful effect of nitrogen dioxide? I. It retards the rate of photosynthesis II. It causes respiratory disease in children III. It is toxic to living tissues.
The irritant red haze in the traffic and congested place is due to…A..