1.
The amount of product formed depends on:
A
Excess reactant
B
Limiting reactant
C
Temperature only
D
Pressure only
2.
Mole ratio is obtained from which part of a chemical equation?
A
Products only
B
Reactants only
C
Balanced coefficients
D
Chemical symbols
3.
Dilution decreases:
A
Moles of solute
B
Volume of solution
C
Concentration of solution
D
Mass of solute
4.
Which polymer is used to make plastic bottles?
A
PET
B
PVC
C
Nylon
D
Teflon
5.
Which organic compound contains both carbon and hydrogen only?
A
Alcohol
B
Ester
C
Hydrocarbon
D
Carboxylic acid
6.
Alcohols are used in pharmaceutical industry to make:
A
Fuels only
B
Medicines and syrups
C
Fertilizers
D
Explosives
7.
Who proposed the first modern atomic theory?
A
Jabir ibn Hayyan
B
John Dalton
C
Robert Boyle
D
Lavoisier
8.
Percentage yield can be greater than 100% if:
A
Reaction is incomplete
B
Product is impure
C
Limiting reactant is less
D
No side reactions occur
9.
In electrolysis of aqueous NaCl, hydrogen is released at:
A
Anode
B
Cathode
C
Salt bridge
D
Electrolyte
10.
Which salt is prepared by neutralization reaction?
A
Sodium chloride
B
Calcium carbonate
C
Sodium sulfate
D
All of these
11.
Esters are formed by reaction between carboxylic acid and:
A
Alkane
B
Alkene
C
Alcohol
D
Aldehyde
12.
Industrial application of esters mainly depends on their:
A
Acidic nature
B
Pleasant odor
C
Basic nature
D
High density
13.
Which organic compound contains -COOH group?
A
Alcohol
B
Ester
C
Carboxylic acid
D
Alkane
14.
Which sector regulates alcohol use for safety?
A
Public health sector
B
Mining sector
C
Textile sector
D
Forestry sector
15.
Which of the following indicates saturation?
A
Presence of double bond
B
Presence of triple bond
C
No decolorization of bromine water
D
Positive Baeyer's test
16.
Molarity decreases when:
A
Solute is added
B
Solvent is removed
C
Solution is diluted
D
Temperature is lowered
17.
Strength of a solution is defined as:
A
Moles per liter
B
Grams per liter
C
Liters per mole
D
Moles per gram
18.
Which polymer is used in making raincoats?
A
Nylon
B
PVC
C
Polystyrene
D
Teflon
19.
Which graph shows effect of catalyst?
A
Higher activation energy
B
Lower activation energy
C
Same activation energy
D
No energy change
20.
Which compound gives effervescence with sodium bicarbonate?
A
Alcohol
B
Aldehyde
C
Carboxylic acid
D
Ester