Chemistry Past Paper Questions

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Q 401:Substitution reaction is the characteristic of:
A
Alkanes
B
Alkenes
C
Alkynes
D
Aldehydes
Bahawalpur, 2018
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Q 402:The end product of Oxidation of Acetylene is:
A
Oxalic acid
B
Glycol
C
Glyoxal
D
Potassium Hydroxide
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Q 403:The Nitrogen present in Urea is used by Plants to Synthesize:
A
Sugar
B
Proteins
C
Fats
D
DNA
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Q 404:Thousands of the Amino Acids Polymerize to form:
A
Carbohydrates
B
Proteins
C
Lipids
D
Vitamins
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Q 405:Which base is used to Neutralize Acidity in the Stomach: (Mark 1)
A
Ca(OH)2
B
NaOH
C
Mg(OH)2
D
KOH
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Q 406:Transfer of Electrons between Atoms results in:
A
Metallic Bonding
B
Ionic Bonding
C
Covalent Bonding
D
Coordinate Covalent Bonding
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Q 407:Tyndall Effect is shown by:
A
Sugar Solution
B
Paints
C
Jelly
D
Chalk Solution
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Q 408:The formula of Rust is:
A
Fe2O3 . nH2O
B
Fe2O3
C
Fe(OH)3 . nH2O
D
Fe(OH)3
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Q 409:The concept of Orbit was used by:
A
J.J Thomson
B
Rutherford
C
Bohr
D
Plank
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Q 410:Spontaneous Chemical Reaction takes place in:
A
Electrolytic Cell
B
Galvanic Cell
C
Nelson's cell
D
Down's Cell
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Total MCQs: 1548Page 41 of 155
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