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
NAT I Engineering Chemistry MCQs With Answers
Question # 1
Which of the following units represents largest amount of energy?
Choose an answer
Calorie
Joule
Erg
Electron vol.
Previous
Skip
Next
Question # 2
Most common reactions of benzene and its derivatives are
Choose an answer
Electrophilic addition reactions
Electrophilic substitution reactions.
Nucleophilic addition reactions
Nucleophilic substitution reactions
Previous
Skip
Next
Question # 3
What quantity of limestone (CaCO
3
) on heating will give 56 kg of CaO?
Choose an answer
1000 kg
56 kg
44 kg
100kg
Previous
Skip
Next
Question # 4
The unit of rate constant for a zero order reaction is
Choose an answer
Liter sec
-1
Liter
mol
-1
sec
-1
Mol liter
-1
sec
-1
Mol
sec
-1
Previous
Skip
Next
Question # 5
Formic acid is obtained when
Choose an answer
Calcium acetate is heated with conc.H
2
SO
4
Calcium formate is heated with calcium acetate
Glycerol is heated with oxalic acid
Acetaldehyde is oxidized with K
2
CrO
7
and H
2
SO
4
Previous
Skip
Next
Question # 6
When KCIO
3
is heated it decomposes into KCI and O
2
if some MnO
2
is added the reaction goes much faster because
Choose an answer
MnO
2
decomposes to give O
2
MnO
2
provides heat by reacting
Better contact is provided by MnO
2
MnO
2
acts as a catalyst
Previous
Skip
Next
Question # 7
Magnesium keeps on burning in
Choose an answer
N
2
CO
2
N
2
O
N
2
as well as CO
2
Previous
Skip
Next
Question # 8
Hydrolytic conversion of sucrose into glucose and fructose is known as
Choose an answer
Induction
Inversion
Insertion
Inhibition
Previous
Skip
Next
Question # 9
Which of the substances Na, Hg, S Pt and graphic can be used as electrodes in electrolytic cells having aqueous solution?
Choose an answer
Na,Pt and graphite
Na and Hg
Pt and graphite only
Na and S only
Previous
Skip
Next
Question # 10
Hydrogen chloride molecule contains
Choose an answer
Covalent bond
Double bond
Co-ordinate bond
Electrovalent bond
Previous
Skip
Next
Question # 11
Portland cement is manufactured by using
Choose an answer
Limestone,clay and sand
Limestone,gypsum and sand
Limestone,gypsum and alumina
Limestone,clay and gypsum
Previous
Skip
Next
Back
