Chemistry Past Paper Questions

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Q 1191:The bond angle H-O-H in water is:
A
104.5
B
104.6
C
104.7
D
104.8
Bahawalpur, 2016
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Q 1192:The chemical formula of gypsum is:
A
CaSO4.2H2O
B
CaCO3.2H2O
C
Ca(HCO3)2.H2O
D
Mg(HCO3)2.4H2O
Bahawalpur, 2016
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Q 1193:The colour of iodine is:
A
Yellow
B
Green
C
Pink
D
Purple
Bahawalpur, 2016
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Q 1194:The meaning of Latin word “Acidus” is:
A
Sweet
B
Tasteless
C
Salty
D
Sour
Bahawalpur, 2016
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Q 1195:The reduction of alkyl halides takes place in the presence of:
A
Zn/HCl
B
Na/HCl
C
Mg/HCl
D
Cu/HCl
Bahawalpur, 2016
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Q 1196:Temporary hardness is because of:
A
Ca(HCO₃)₂
B
CaCO3
C
MgCO₃
D
MgSO₄
Bahawalpur, 2016
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Q 1197:The amount of energy given out when an electron is added to an atom is called:
A
Lattice energy
B
Ionization Energy
C
Electronegativity
D
Electron Affinity
Bahawalpur, 2016
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Q 1198:The atomic radii of the element in periodic table:
A
Increase from left to right in a period
B
Increase from top to bottom in a group
C
Do not change from left to right in a period
D
Decreases from top to bottom in a group
Bahawalpur, 2016
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Q 1199:Transfer of electrons between atoms result in
A
Metallic Bonding
B
Ionic Bonding
C
Covalent Bonding
D
Coordinate Covalent Bonding
Bahawalpur, 2016
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Q 1200:The oxidation number of chromium in K2Cr2O7 is:
A
+2
B
+6
C
+14
D
+7
Bahawalpur, 2016
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Total MCQs: 1548Page 120 of 155
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