1
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0
Which one of the following has lowest $$\mathrm{pK}_{\mathrm{a}}$$ value?
2
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0
Which of the following cell was used in Apollo space programme?
3
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0
The following experimental rate data were obtained for a reaction carried out at $$25^{\circ} \mathrm{C}$$
$$A_{(g)}+B_{(g)} \rightarrow C_{(g)}+D_{(g)}$$
| Initial $$\mathrm{[A_{(g)}]/mol~dm^{-3}}$$ | Initial $$\mathrm{[B_{(g)}]/mol~dm^{-3}}$$ | Initial rate/mol $$\mathrm{dm^{-3}s^{-1}}$$ |
|---|---|---|
| $$3.0 \times 10^{-2}$$ | $$2.0 \times 10^{-2}$$ | $$1.89 \times 10^{-4}$$ |
| $$3.0 \times 10^{-2}$$ | $$4.0 \times 10^{-2}$$ | $$1.89 \times 10^{-4}$$ |
| $$6.0 \times 10^{-2}$$ | $$4.0 \times 10^{-2}$$ | $$7.56 \times 10^{-4}$$ |
$$\text { What are the orders with respect to } \mathrm{A}_{(\mathrm{g})} \text { and } \mathrm{B}_{(\mathrm{g})} \text { ? }$$
4
CBSE 12th Chemistry Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0
The magnetic moment of $$\left[\mathrm{NiCl}_4\right]^{2-}$$
[Atomic number : $$\mathrm{Ni}=28$$ ]
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Chemistry
35
Class 12
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