The reaction of toluene with in the presence of gives 'X' and reaction in presence of light gives 'Y'. Thus, 'X' and 'Y' are
1. X = benzal chloride, Y= o-chlorotoluene
2. X = m-chlorotoluene, Y= p-chlorotoluene
3. X = o and p-chlorotoluene, Y = trichloromethyl benzene
4. X = benzal chloride, Y = m-chlorotoluene
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen acetylene is passed through dil. in presence of , the compound formed is
1. ether
2. ketone
3. acetic acid
4. acetaldehyde
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAcetylenic hydrogens are acidic because
1. sigma electron density of C-H bond in acetylene is nearer to carbon which has 50% s-character
2. acetylene has only one hydrogen on each carbon
3. acetylene contains least number of hydrogens among the possible hydrocarbons having two carbons
4. acetylene belong to the class of alkynes with molecular formula
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA compound is treated with to give sodium salt. Identify the compound.
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyEthylene forms ethylene chlorohydrin by the action of:
1. dry chlorine gas
2. dry hydrogen chlorine gas
3. solution of chlorine gas in water
4. dilute hydrochloric acid
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich alkene on ozonolysis gives and ?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHydroxylation of propyne in the presence of is initiated by the attack of:
1. carbene
2. free radical
3. electrophile
4. nucleophile
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyOzonolysis of buta-1,3-diene gives:
1. HCHO and glyoxal
2. and glyoxal
3. and glyoxal
4. HCHO + glyoxal +
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA mixture of ethane, ethene and ethyne is passed through an ammoniacal solution. The gases that remain unreacted are-
1. Ethane and Ethene
2. Ethane and Ethyne
3. Ethene and Ethyne
4. Ethane only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most suitable reagent among the following that is used to distinguish compound (III) from the rest of the compounds is -
I.
II.
III.
IV.
1. /
2. /
3. Alk.
4. Ammoniacal
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology