Practice Organic chemistry - general science mcq Online Quiz (set-2) For All Competitive Exams
Q-1) If a hydrocarbon has any double bond, it is
(a)
(b)
(c)
(d)
Alkenes have double bond.
Q-2) The prerequisites for biotechnological production of antibiotics is- to search an antibiotic producing micro-organism
- to isolate the antibiotic gene
- to join antibiotic gene with E.coli plasmid
(a)
(b)
(c)
(d)
Q-3) In organic chemistry we study about - carbohydrates
- fertilizers
- proteins
- ceramics
Choose the correct option from the codes given below:
(a)
(b)
(c)
(d)
Q-4) Which one of the following is an active component of oil of clove?
(a)
(b)
(c)
(d)
Q-5) On the basis of mode of formation, polymers can be classified- as addition polymers
- as condensation polymers
- as copolymers
- as synthetic polymers
Choose the correct option from the codes given below:
(a)
(b)
(c)
(d)
Q-6) Which of the following can be used as artificial sweetner(s) ? - Aspartame
- Alitame
- Sucralose
- Saccharin
(a)
(b)
(c)
(d)
Q-7) Which of the following statements about ribose are correct? - It is a polyhydroxy compound.
- It is an aldehyde sugar.
- It has six carbon atoms.
- It exhibits optical activity.
(a)
(b)
(c)
(d)
Ribose is an aldopentose
Q-8) Soaps are sodium salts of fatty acids. Which of the following fatty acid does not form soap?
(a)
(b)
(c)
(d)
Q-9) Which of the following have affinity to dye nylons ? - Basic dyes
- Ingrain dyes
- Direct dyes
- Disperse dyes
Choose the correct option from the codes given below:
(a)
(b)
(c)
(d)
Q-10) The other names of gammaxene are : - gamma-hexachloro cylcohexane
- lindane
- aldrin
Select the correct option from the codes given below:
(a)
(b)
(c)
(d)
Q-11) Gas welding used for welding broken pieces of iron, we normally use a mixture of :
(a)
(b)
(c)
(d)
Q-12) Pentane has the molecular formula C5H12. It has
(a)
(b)
(c)
(d)
i.e., 16 covalent bonds.
Q-13) Alkenes are characterized by
(a)
(b)
(c)
(d)
Alkanes are saturated compounds in which all the four electrons of carbon are covalently bonded with other carbon atoms through single bond
Q-14) Alkynes are characterized by –
(a)
(b)
(c)
(d)
Q-15) The characteristic odour of garlic is due to
(a)
(b)
(c)
(d)
Q-16) The order of appearance of the following with increasing temperature during the refining of crude oil is _____________ .
(a)
(b)
(c)
(d)
Petroleum products are usually grouped into three categories:
- Light distillates (LPG, gasoline, naphtha),
- Middle distillates (kerosene, diesel),
- Heavy distillates and residuum (heavy fuel oil, lubricating oils, wax, asphalt).
Hence, the correct option would be Gasoline, kerosene, and diesel.
Q-17) Which is a general formula of alkenes?
(a)
(b)
(c)
(d)
Q-18) General formula of alkyne is
(a)
(b)
(c)
(d)
Q-19) Addition of ethylene dibromide to petrol
(a)
(b)
(c)
(d)
Q-20) A sample of chloroform before using as an anaesthetic, is tested by
(a)
(b)
(c)
(d)
It is tested by ammonical silver nitrate solution.