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Science M.C.Q

metals and non-metals · Gujarat Board (GSEB) STD 10 (GSEB - English Medium). 16 questions.

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M.C.Q

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16 questions · timed · auto-graded

MCQ 11 Mark
Which of the following pairs will give displacement reactions?
  • A
    $NaCI$ solution and copper metal
  • B
    $MgCl2$ solution and aluminium metal
  • C
    $FeSO4$ solution and silver metal
  • ✓
    $AgNO3$ solution and copper metal
Answer
Correct option: D.
$AgNO3$ solution and copper metal
$AgNO_3$ solution and copper metal
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MCQ 21 Mark
Which of the following statements is incorrect?
  • A
    Corrosion of copper takes place by contact with air and water.
  • ✓
    The melting points and boiling points of metals are low.
  • C
    The method to convert carbonate containing ore to metal oxide is called calcination.
  • D
    The displacement of less active metals from their solution takes place by more active metal.
Answer
Correct option: B.
The melting points and boiling points of metals are low.
B. The melting points and boiling points of metals are low.
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MCQ 31 Mark
Which of the following reactions is not possible?
  • A
    $Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)$
  • B
    $Zn(s) + FeSO4(aq) → ZnSO4(aq) + Fe(s)$
  • C
    $Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)$
  • ✓
    $Cu(s) + FeSO4(aq) → CuSO4(aq) + Fe(s)$
Answer
Correct option: D.
$Cu(s) + FeSO4(aq) → CuSO4(aq) + Fe(s)$
$Cu(s) + FeSO_4(aq) → CuSO_4(aq) + Fe(s)$
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MCQ 41 Mark
In which of the following, displacement reaction is possible?
  • A
    Solution of $NaCl +$ coin of copper
  • B
    Solution of $MgCl2 +$ coin of aluminium
  • C
    Solution of $FeSO4 +$ coin of silver
  • ✓
    Solution of $AgNO3 +$ coin of copper
Answer
Correct option: D.
Solution of $AgNO3 +$ coin of copper
 Solution of AgNO$_3$ + coin of copper
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MCQ 51 Mark
During which reaction is dihydrogen gas not produced under normal conditions?
  • A
    Metal + dilute sulphuric acid
  • B
    Metal + dilute hydrochloric acid
  • C
    Metal + dilute nitric acid
  • ✓
    Metal + water
Answer
Correct option: D.
Metal + water
 Metal + water
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MCQ 61 Mark
Which of the following reactions is called roasting?
  • A
    $ZnCO3(s) = ZnO(s) + CO2(g)$
  • ✓
    $2ZnS(s) +3O2(g) =  2ZnO(s) +2SO2(g)$
  • C
    $ZnO(s) + C(s)  = Zn(s) + CO(g)$
  • D
    $Zn(s) + H2O(g)  = ZnO(s) + H2(g)$
Answer
Correct option: B.
$2ZnS(s) +3O2(g) =  2ZnO(s) +2SO2(g)$
$B.$ $2 ZnS ( s )+3 O _2(g) \rightarrow^\Delta 2 ZnO ( s )+2 SO _2(g)$
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MCQ 71 Mark
$HNO3$ is reduced in......
  • A
    $NO$
  • B
    $NO2$
  • C
    $N2O$
  • ✓
    All of the given
Answer
Correct option: D.
All of the given
All of the given
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MCQ 81 Mark
Which layer is formed on $Al$, when it is exposed to air?
  • A
    $Al3O2$
  • ✓
    $Al2O3$
  • C
    $AIO$
  • D
    $AIN$
Answer
Correct option: B.
$Al2O3$
$Al_2O_3$
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MCQ 91 Mark
Which allotrope of carbon is known as the hardest natural substance?
  • A
    Graphite
  • ✓
    Diamond
  • C
    Coke
  • D
    Carbon black
Answer
Correct option: B.
Diamond
B. Diamond
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MCQ 101 Mark
Which metal exists as liquid at room temperature?
  • ✓
    Mercury
  • B
    Bromine
  • C
    Sodium
  • D
    Calcium
Answer
Correct option: A.
Mercury
A. Mercury
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MCQ 121 Mark
Which of the following is not useful as a good conductor of heat?
  • A
    Silver
  • B
    Copper
  • ✓
    Lead
  • D
    All of the given
Answer
Correct option: C.
Lead
C. Lead
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MCQ 131 Mark
Which of the following metals is highly malleable?
  • A
    Gold
  • B
    Silver
  • ✓
    $A$ and $B$ both
  • D
    None of these
Answer
Correct option: C.
$A$ and $B$ both
$A$ and $B$ both
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MCQ 141 Mark
Height and weight of iron pillar near the Qutub Minar in Delhi are respectively.......
  • ✓
    $8$ metre, $6$ tonnes
  • B
    $6$ metre, $8$ tonnes
  • C
    $6$ metre, $6$ tonnes
  • D
    $8$ metre, $8$ tonnes
Answer
Correct option: A.
$8$ metre, $6$ tonnes
$8$ metre, $6$ tonnes
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MCQ 151 Mark
Which of the following is an alloy?
  • A
    Brass
  • B
    Bronze
  • C
    Steel
  • ✓
    All of the given
Answer
Correct option: D.
All of the given
D. All of the given
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MCQ 161 Mark
Most of the metal oxides in water are...
  • A
    Soluble
  • ✓
    Insoluble
  • C
    Partial soluble
  • D
    Highly soluble
Answer
Correct option: B.
Insoluble
B. Insoluble
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