Basic Chemistry MCQs

GURU MCQs provides MCQs of Chemistry from Basic to Advance, so that you can prepare accordingly. MCQs of Chemistry section covers important topics of chemistry. Most repeated Chemistry MCQs frequently encountered in Inspector, ASI, Sub-inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. Chemistry most repeated MCQs include Basic chemistry MCQs, Chemical Bond MCQs, Gases MCQs, Liquids and Solids MCQs, Hydrocarbons MCQs, Polymerization MCQs, Rates of Reactions MCQs, Transition Elements MCQs, Organic Chemistry MCQs, Electrons in Atoms MCQs, Moles and Equations MCQs, etc.

1. Rate of reactions of most organic compounds are____________________?

A. very slow
B. very fast
C. slow
D. no regular character present

2. Coal is produced after a long time decay of_________________?

A. animals
B. fossils
C. wood
D. all of the above

3. Crude oil is blackish coloured liquid produced after the decay of organic matter present between_________________?

A. earth layer
B. mountains
C. sedimentary rocks
D. rocks

4. At low temperature and pressure cracking can be done in presence of catalyst________________?

A. Al2O3
B. Fe2O3
C. Al2O3 and SiO2
D. Fe2O3 and SiO2

5. Which one of the following compounds shows intense knocking ?

A. n-pentane
B. iso-heptane
C. iso-octane
D. n-heptane

6. Ether functional group can be represented as ____________________?

C. R-O-R

7. A single atom or group of atoms which gives characteristic properties to a compound is called_________________?

A. radical
B. hydrocarbon
C. functional group
D. ion

8. 2-propanol and 1-propanol show the isomerism________________?

A. metamerism
B. functional group isomerism
C. geometric isomerism
D. position isomerism

9. In sp3 hybridization the expected geometry of molecules will be__________________?

A. square planar
B. trigonal pyramidal
C. tetrahedral
D. linear

10. In cyano group the carbon atom shows which kind of hybridization___________________?

A. sp2
B. sp
C. sp3
D. none of the above

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