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
Which of the following human activities are contaminating surface and ground waters?
Choose an answer
pesticides
septic ranks
petroleum and natural gas production
all of these
Previous
Skip
Next
Question # 2
The relationship between volume of a given amount of gas and prevailing conditions of temperature and pressure are:
Choose an answer
Charle's law
Graham's law
Boyle's law
Gas laws
Previous
Skip
Next
Question # 3
The exothermic process is
Choose an answer
Evaporation
Sublimation
Respiration
Boiling
Previous
Skip
Next
Question # 4
The number paper industries in Pakistan are:
Choose an answer
30
25
35
20
Previous
Skip
Next
Question # 5
Formation of PVC form vinyl chloride is an example of
Choose an answer
substitution reaction
addition polymerization
condensational reaction
Aldol condensation
Previous
Skip
Next
Question # 6
Carboxylic acids reacts with sodium carbonate, & gas evolved in this reaction
Choose an answer
CO2
H2
CO
Both a &b
Previous
Skip
Next
Question # 7
Industrial effluents have toxic synthetic organic compounds as well as heavy metals like
Choose an answer
Pb
Cr
Hg
All of these
Previous
Skip
Next
Question # 8
Nucleic acid contain elements like N,H,O,C and
Choose an answer
Ca
S
P
F
Previous
Skip
Next
Question # 9
CFC's are known to cause depletion of ozone layer therefore their use has been banned in refrigerators and air conditioners. Which alternate compound may be suitable to replace CFC
Choose an answer
CCl
4
CHCl
3
CH
3
- CH
2
- CH
2
- CH
3
CHCl
2
- CHF
2
Previous
Skip
Next
Question # 10
Diamond is a bad conductor of electricity because:
Choose an answer
it has a tight structure
it has a high density
there are no free electrons
none of the above
Previous
Skip
Next
Question # 11
The isomerism in which the compounds differ with respect to functional group but have same molecular formula is called
Choose an answer
Metamerism
Functional group isomerism
Position isomerism
Chain isomerism
Previous
Skip
Next
Question # 12
The molarity of the solution containing x grams (NH
4
)
2
SO
4
in 500 cm
3
of the solution is 0.6 what is x
Choose an answer
39.6
45.1
40.5
42.7
Previous
Skip
Next
Question # 13
If an electrophile attacks then ______ bond breaks first
Choose an answer
C - H
O - H
C - O
None of these
Previous
Skip
Next
Question # 14
Plastics are a pollution problem because many plastics
Choose an answer
Are made from petroleum
Are very inflammable
Burn to produce toxic fumes
Decompose to produce toxic products
Previous
Skip
Next
Question # 15
The orbital in Rutherford's model is
Choose an answer
Spiral
Circular
Both
None
Previous
Skip
Next
Question # 16
Among the following polymers, the strongest molecular forces are present in
Choose an answer
Elastomers
Fibres
Thermoplactics
Thermosetting polymers
Previous
Skip
Next
Question # 17
The reaction between primary amine-chloroform and alcoholic caustic potash is called
Choose an answer
Wurtz reaction
Frankland reaction
Cannizzaro's reaction
Carbylamine reaction
Previous
Skip
Next
Question # 18
pH and pKa of the buffer are related by Henderson equation which is
Choose an answer
Previous
Skip
Next
Question # 19
Which property is not present in lipids?
Choose an answer
Liquid
Solid or semi solid
Soluble in water
Form emulsion
Previous
Skip
Next
Question # 20
Which one of the following is a buffer
Choose an answer
HCI + NaCI solution
CH
3
COOH + CH
3
COONH
4
solution
H
2
SO
4
+ CaSO
4
solution
CH
3
COOH + CH
3
COONa
Previous
Skip
Next
Question # 21
Closed chain compound can be classified into
Choose an answer
Homocyclic
Hetrocyclic
Aliphatic
Both a and b
Previous
Skip
Next
Question # 22
LiOH ______ soluble than NaOH
Choose an answer
More soluble
Less soluble
Equally soluble
None
Previous
Skip
Next
Back