Rajasthan Technical Education Second Year Paper 2016 Organic Chemistry

Rajasthan Technical Education Second Year Paper 2016 Organic Chemistry

Carbon-carbon double bond consists of
(a) one sigma bond, one pi bond
(b) two sigma bonds, one pi bond
(c) One sigma bond, two pi bond
(d) two sigma bonds, two pi bonds

An alkane has 75 carbon atoms in its molecule, the number of hydrogen atom will be
(a) 150
(b) 148
(c) 152
(d) 146

Monoterpenses consists of
(a) 10 carbon
(b) 5 carbon
(c) 15 carbon
(d) 20 carbon

Which product is obtained when Menthol is heated with KHSO4 ?
(a) Acetaldehyde
(b) Acetone
(c) Methane
(d) Alpha terpenal

The water-solubility of dyes can be increased by which group ?
(a) SO3Na
(b) – COOH
(c) – OH
(d) All of these

Which of the following statements is false about tautomers ?
(a) Tautomers are structural isomers
(b) Tautomers are structural isomers, which exist in dynamic equilibrium
(c) Tautomers involves movement of atoms
(d) Tautomers have independent existence

Colloids can be purified by which method ?
(a) Condensation
(b) Peptization
(c) Coagulation
(d) Dialysis

The functional group which always present in the middle of carbon chain is
(a) Alcohol group
(b) Carboxyl group
(c) Ketone group
(d) Aldehyde group

Which dyes become linked to the fibre by chemical reaction ?
(a) Acid dyes
(b) Direct dyes
(c) Disperse dyes
(d) None of these

Heterocyclic compounds or heterocyclic are
(a) compounds containing unusual rings
(b) cyclic compounds in which one or more of the atoms has an unusual bonding pattern
(c) cyclic compounds in which one or more of the atoms of the ring are hetero atoms
(d) compounds containing at least two different rings

Which of the following statements is NOT true ?
(a) Natural rubber is a hydrocarbon
(b) Natural rubber is made of isoprene monomers
(c) Natural rubber can be vulcanized
(d) Natural rubber is a polymer of 1,3-butadiene

Which of the following is an example of a condensation polymer ?
(a) Nylon – 6,6
(b) Teflon
(c) Polypropylene
(d) Orlon