More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Proxy acetyl nitrat5e (PAN) is an irritant to human beings and it affects:
Choose an answer
nose
stomach
eyes
ears
Previous
Skip
Next
Question # 2
Which is unnecessary for purification of water for drinking purpose?
Choose an answer
Coagulation
Treatment with iodine
Aeration
Chlorination
Previous
Skip
Next
Question # 3
Which of the following is not a category of proteins based upon their function?
Choose an answer
genetic
Regulatory
nucleo
structural
Previous
Skip
Next
Question # 4
The no. of Ip's on oxygen in CO are
Choose an answer
1
3
4
2
Previous
Skip
Next
Question # 5
In an elimination reaction a more substituted alkene is formed due to the stability associated with
Choose an answer
Free radical
transition state
Activated complex
Carbocation
Previous
Skip
Next
Question # 6
When the temperature is raised, the viscosity of the liquid decreases.This is because of
Choose an answer
Decreased volume of the solution
Increase in temperature increases the average kinetic energy of molecules which overcome the attractive force between them
Decreased covalent and hydrogen bond forces
Increased attraction between the moelcules
Previous
Skip
Next
Question # 7
Cyclonite is a powerful:
Choose an answer
explosive
antiseptic
analgesic
anti-inflammatory
Previous
Skip
Next
Question # 8
Acetylide can give back ethyne upon treatment with
Choose an answer
water
strong base
dil. Acid
weak base
Previous
Skip
Next
Question # 9
An element that is not an essential par of proteins is
Choose an answer
O
N
H
S
Previous
Skip
Next
Question # 10
The phenomenon in which sudden expansion of a gas causes cooling is called
Choose an answer
evaporation
cooling
Joule Thomson effect
sublimation
Previous
Skip
Next
Question # 11
Compound X & Y give effervesce with Na2CO3, solution. X gives a white ppt with ammonical AgNO3 while Y gives sweet smell compound on heating with alcohol X &Y are
Choose an answer
Formic acid & acetic acid
Acetone & formic acid
Acetaldehy de & acetic acid
Acetic acid & acetone
Previous
Skip
Next
Question # 12
The protection of steel by chrome plating is due to
Choose an answer
Cathodic protection
Anodic protection
Covering of steel surface
Formation of alloy with iron
Previous
Skip
Next
Question # 13
Series starting from57La,42Hf -80Hg is in the period:
Choose an answer
4th
5th
6th
7th
Previous
Skip
Next
Question # 14
In a Galvanic cell
Choose an answer
Chemical energy is converted into electricity
Chemical energy is converted into heat
Electrical energy is converted into heat
Electrical energy is converted into chemical energy
Previous
Skip
Next
Question # 15
Aldehydes can be distinguished from ketones by
Choose an answer
2,4-DNPH test
NaHSO
3
test
N
2
H
4
test
Tollen's test
Previous
Skip
Next
Question # 16
Ionic hydrides are generally
Choose an answer
Liquid at room temperature
Good electrical conductors
Good reducing agents
Easily reduced
Previous
Skip
Next
Question # 17
The electron releasing effect of methyl group is significant and it makes ring a good
Choose an answer
Electrophilic
Nucleophilic
Nucleophobic
Hydrophobic
Previous
Skip
Next
Question # 18
The rate of a chemical reaction is directly;y proportional to product of molar concentration of reaction substance it is called :
Choose an answer
Low of conservation of energy.
Law of mass action.
Rate law .
Active mass rule.
Previous
Skip
Next
Question # 19
Orbitals having same energy are called
Choose an answer
Hybrid orbitals
Valence orbitals
Degenerate orbitals
D-orbitals
Previous
Skip
Next
Question # 20
Doberiner arranged the similar elements into
Choose an answer
Pairs
Triads
Triplets
Rows
Previous
Skip
Next
Question # 21
Which one of the following properties is not correct for ozone?
Choose an answer
It oxidizes lead sulphides
It oxidizes potassium iodide
It oxidizes mercury
It cannot act as a bleaching agent
Previous
Skip
Next
Question # 22
During oxidation in k
2
Cr
2
O
7, Cr VI changes to :
Choose an answer
I
II
III
IV
Previous
Skip
Next
Back