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96. Which of the following class of organic compound does not contain (C = 0) group in some form? (NTSE Andhra Pradesh, Stage-I, 2016-17)
Aldehydes
Ethers
Carboxylic acids
Esters
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97. Graphite is very soft as compared other substances because (NTSE Andhra Pradesh, Stage-I, 2016-17)
Each carbon atom is attached to three other carbon atoms
Carbon atoms are arranged in such a way that they form flint layers
Linkages between atoms within layer of graphite are weak
Linkages between atoms of the layers are weak
98. The compound obtained by reaction of C2H50H with concentrated H2S04 at 443 K is (NTSE Chhattisgarh, Stage-I, 2016-17)
C2H4
CH3CHO
CH3COOH
CH3COCH3
99. Ethanol is made unfit for drinking by adding (NTSE Rajasthan, Stage-I, 2016-17)
Propanol
Methanal
Methano
Ethanal
100. In the following structual formulae one IUPAC name is incorrect. Identify it (NTSE Maharashtra, Stage-I, 2016-17)
CH3 - CH2 - CH2- CH2 - OH-Butanol
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