How many electrons are there in benzene to form delocalized electron cloud________________?
How many electrons are there in benzene to form delocalized electron cloud________________?
A. 3
B. 4
C. 6
D. 8
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Which of the following compounds is not soluble in HNO3___?A. CuS
B. CdS
C. PbS
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B. Extraction
C. Gas chromatography
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Crystalline solids can be identified easily from their ___________________?A. Sharp melting point
B. Definite geometry
C. Transition temperature
D. ColourWhen SO2 solution is passed over which of the following it turns green?
When SO2 solution is passed over which of the following it turns green?A. K2Cr2O7
B. H2SO4
C. SO3
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Hydrocarbon is formed when Grignard reagent is treated with___________?A. H2O
B. CH3OH
C. Both a and b
D. None of the above