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Chemistry Test-13

  • Remaining Timing :-

(1). Oxidation is

  • (a). loss of electrons
  • (b). addition of hydrogen
  • (c). decrease in oxidation number
  • (d). all of the above
  • (e). None of these
Answer : loss of electrons

Explanation:

(2). The strongest reducing agent is

  • (a). K
  • (b). Mg
  • (c). A1
  • (d). Br
  • (e). None of these
Answer : K

Explanation:

(3). The set of numerical coefficients that balances the equation
  • (a). 1,1,2,2,1
  • (b). 2,2,1,1,1
  • (c). 2,1,1,2,1
  • (d). 2,2,1,2,1
  • (e). None of these
Answer : 2,2,1,2,1

Explanation:

(4).
  • (a). 1
  • (b). 2
  • (c). 3
  • (d). 4
  • (e). None of these
Answer : 2

Explanation:

(5).
  • (a). 1
  • (b). 2
  • (c). 3
  • (d). 4
  • (e). None of these
Answer : 3

Explanation:

(6).
  • (a). 1
  • (b). 2
  • (c). 3
  • (d). 4
  • (e). None of these
Answer : 3

Explanation:

(7). In which of the following compounds transition metal is in zero oxidation state ?
  • (a). 1
  • (b). 2
  • (c). 3
  • (d). 4
  • (e). None of these
Answer : 3

Explanation:

(8).
  • (a). acid
  • (b). oxidising agent
  • (c). reducing agent
  • (d). both (a) and (b)
  • (e). None of these
Answer : both (a) and (b)

Explanation:

(9). In the chemical reaction,
  • (a). water is oxidised
  • (b). silver is oxidised
  • (c). silver is reduced
  • (d). hydrogen is reduced
  • (e). None of these
Answer : silver is reduced

Explanation:

(10).
  • (a). 1.5
  • (b). 2.5
  • (c). 3
  • (d). 2
  • (e). None of these
Answer : 2.5

Explanation:

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