19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
Assertion (A): CO and NO combine with haemoglobin. Reason (R): Both have equal affinity for haemoglobin. (AIIMS 2012)
BOD stands for (AMU 2012)
Which one of the following statements regarding photochemical smog is not correct? (CBSE, AIPMT 2012)
Photochemical smog is caused by light mediated reaction between : (AIPMT 2012)
Eutrophication is due to (AMU 2011) (a) SO ion present in water
Excess nitrate in drinking water can cause (Kerala CEE 2011)
Which of the following statements is not true ? (AIPMT 2011)
‘Good ozone’ is found in the (AIPMT Mains 2011)
Identify the incorrect statement from the following. (AIEEE 2011)
Greenhouse effect is caused by (JCECE2010)
Photochemical smog is caused due to the presence of (Kerala CEE2009)
Assertion (A): London smog is oxidising in nature. Reason (R): London smog contains O3, NO2 and hydrocarbons. (AIIMS2009)
Match the Column I with the Column II and choose the correct option from cods given below : Column I Column II A. Normal B. Acid rain 1. H2CO3 2. HNO3 3. HCl 4. H2SO4 Codes : A B
Which of the following belongs to secondary air pollutants?
Bad ozone is found in the :
Photochemical smog does not contain:
Which of the following statement is incorrect about particulate pollutant?
Photochemical smog is caused by light mediated reaction between:
Which of the following statement(s) is/are incorrect regarding photochemical smog ?
Which of the following statement(s) is/are true? I. Carbon monoxide is a secondary air pollutant II. SO2 causes brown air effect during traffic congestion in cities. III. DDT is a non-biodegradable pollutant.
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because.
Match the Column I with Column II and choose the correct option from the codes given below : Column I Column II A. SO2 B. NO2 C. CO 1. Binds with haemoglobin 2. Leads to stiffness of flower Buds 3. Irritant red haze i…
Point out the plants which are most effective for controlling of photochemical smog ?
Catalytic converters are used to control…A… Here, A refers to.