Biochemical oxygen Demand ,(BOD) is a measure of organic material present in water
Biochemical oxygen Demand ,(BOD) is a measure of organic material present in water.BOD value less than 5 ppm indicates a…
8 years ago
Questions
Which of the following practices will not come under green chemistry
Which of the following practices will not come under green chemistry Options (a) If possible,making use of soap made of…
8 years ago
Which of the following statements is incorrect
Which of the following statements is incorrect Options (a) Textile workers suffer from white lung disease (b) Coal miners suffer…
8 years ago
Which of the following is the coldest region
Which of the following is the coldest region Options (a) Troposphere (b) Mesosphere (c) Stratosphere (d) Thermosphere Correct Answer: MesosphereExplanation:No…
8 years ago
Classical smong is found in
Classical smong is found in Options (a) winter during morning time (b) winter during day time (c) summer during day…
8 years ago
In which type of reaction oxygen is converted into ozone
In which type of reaction oxygen is converted into ozone Options (a) Oxidation (b) Reduction (c) Photochemical (d) Addition Correct…
8 years ago
Dinitrogen and dioxygen are main constituents of air but these do not react
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of…
8 years ago
The recycling of plastic is done by
The recycling of plastic is done by Options (a) depolymerization (b) reoxidation (c) transformation (d) all of the above Correct…
8 years ago
Which of the following statements is correct
Which of the following statements is correct Options (a) Ozone hole is a hole formed in stratosphere from which ozone…
8 years ago
Which of the following gases is not a greenhouse gas
Which of the following gases is not a greenhouse gas Options (a) CO (b) O₃ (c) CH₄ (d) H₂O vapour…
8 years ago