The greenhouse effect is a climatic condition associated with the presence of excess A. carbon (IV) oxide B. hydrogen sulphide C. nitrogen (ll) oxide D. ammonia gas Correct Answer: Option A A. carbon (IV)...
Read MoreEnvironmental pollution problems are generally more severe in countries which have A. dense population B. low birth rate C. great land mass D. limited industries Correct Answer: Option A A. dense...
Read MoreWhich of the following is needed to produce slag during the extraction of iron in the blast furnace? A. Cryolite B. Limestone C. Carbon D. Sulphur Correct Answer: Option B B....
Read MoreGeometric (cis-trans) isomerism is exhibited by A. C 2H 2CI 2 B. CH2CI5 C. C 4H 10 D. C5H12 Correct Answer: Option A A. C 2H 2CI 2
Read MoreWhich of the following is a secondary alkanol? A. OHCI2-CH2OH B. H2C=CH-CH2OH C. CH 3-CH(OH)-CH 3 D. CH3-(CH2)3-CH2OH Correct Answer: Option C C. CH 3-CH(OH)-CH 3
Read MoreWhich of the following compounds reacts with sodium hydroxide to form a salt? A. CH 3CH 2COOH B. (CH3) 3COH C. CH3CH=CH 2 D. C 6H 12O 6 Correct Answer: Option A A. CH 3CH...
Read MoreWhich of the following compounds is unsaturated? A. 2-methylbutane B. Chloromethane C. Methylbenzene D. 1,2-dibromoethane Correct Answer: Option C C. Methylbenzene
Read MoreWhich of the following is the most reactive towards bromine? A. Methane B. Benzene C. Ethyne D. Hexane Correct Answer: Option C C. Ethyne
Read MoreHow many carbon atoms are present in one molecule of 2-methylpropane? A. 2 B. 3 C. 4 D. 5 Correct Answer: Option C C. 4
Read MoreWhen dilute copper (ll) chloride solution is electrolysed, the reaction at the cathode is represented by the equation A. Cu → Cu2+ + 2e- B. Cu2+ + 2e- → Cu C. 40H- – 4e- → O2 + 2H2O D. 2CI- → CI2 + 2e Correct Answer:...
Read MoreEqual volumes of water were added to one mole of each of the following compounds. Which of them produced the largest number of ions A. Glucose B. Sodium trioxonitrate (V) C. Ethananoic acid D. Silver chloride Correct Answer:...
Read MoreWhich of the following is not correct about oxidation number convention? The oxidation number of a/an A. element in the free state is zero B. monatomic ion is equal to its charge C. alkali meta like sodium in its compounds is +...
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