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 compounds has the lowest anion to cation size ratio?
Choose an answer
LiF
NaF
CsI
CsF
Previous
Skip
Next
Question # 2
With increasing principle quantum number the energy difference between adjacent energy levels in H atom
Choose an answer
Decreases
Increases
Remains constant
Decreases for low value of Z and increases for higher value of Z.
Previous
Skip
Next
Question # 3
Which of the following substances is used as an antiknock compound?
Choose an answer
Tetraethyl lead
Lead tetrachloride
Lead acetate
Ethyl acetate
Previous
Skip
Next
Question # 4
Carbon atom holding halogen in aryl halides is
Choose an answer
Sp
2
-hybridesed
Sp
3
-hybridesed
Sp
-hybridesed
Sp
3
d -hybridesed
Previous
Skip
Next
Question # 5
Sulphure dioxide affects
Choose an answer
Cell wall
Plasmodesmata
All membrane systems
Nucleus
Previous
Skip
Next
Question # 6
Chile salt petre is
Choose an answer
NaNO
3
Na
2
SO
4
KNO
3
Na
2
S
2
O
3
Previous
Skip
Next
Question # 7
The reaction/method that does not give an alkane is
Choose an answer
Catalytic hydrogenation of alkanes
Wurtz reaction
Hydrolysis of alkyl magnesium bromide
Dehydrohalogenation of an alkyl halid.
Previous
Skip
Next
Question # 8
Ascorbic acid is a chemical name of
Choose an answer
Vitamin D
Vitamin A
Vitamin C
Vitamin B
6
Previous
Skip
Next
Question # 9
The addition of HBr is easiest with
Choose an answer
CH2 = CHCI
CICH = CHCI
CH3 - CH = CH2
(CH3)2 C = CH2
Previous
Skip
Next
Question # 10
Natural frertilizer provides phosphorus to plants in the form of P
2
O
5
Choose an answer
1.2 kg
2.2 kg
3.2 kg
4 kg
Previous
Skip
Next
Question # 11
Octane number is zero for
Choose an answer
n-Heptane
Isooctane
n-Hexane
Isoheptane
Previous
Skip
Next
Back