Day 39: MHT-CET Chemistry

1. A.
   $[\mathrm{Pt(en)_2(NCS)}]^{2+}$
2. B.
   $\mathrm{Pt[(en)_2(SCN)_2]^{4+}}$
3. C.
   $[\mathrm{Pt(en)_2(SCN)_2}]^{2+}$
4. D.
   $\mathrm{Pt[(en)_3(SCN)_2]^{4+}}$

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1. A.
   $\mathrm{PbO_{2(s)} + 4H^+_{(aq.)} + SO_4^{2-}{}_{(aq.)} + 2e^- \rightarrow Pb_{(s)} + PbSO_{4(s)} + 2H_2O_{(\ell)}}$
2. B.
   $\mathrm{PbO_{2(s)} + 4H^+\ 2e^- \rightarrow Pb^{2+} + 2H_2O_{(\ell)}}$
3. C.
   $\mathrm{Pb_{(s)} + SO_4^{2-}{}_{(aq.)} \rightarrow PbSO_{4(s)} + 2e^-}$
4. D.
   $\mathrm{PbSO_{4(s)} + 2e^- \rightarrow Pb_{(s)} + SO_4^{2-}{}_{(aq.)}}$

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1. A.
   $+1$
2. B.
   $+2$
3. C.
   $+4$
4. D.
   $+3$

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1. A.
   $\mathrm{CH_3 - CH_2 - CH_2 - X}$
2. B.
   $\mathrm{C_6H_5CH_2 - X}$
3. C.
   $\mathrm{CH_2 = CH - CH_2 - X}$
4. D.
   $\mathrm{CH_3 - CH = CH - X}$

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1. A.
   $65\%$
2. B.
   $70\%$
3. C.
   $40\%$
4. D.
   $50\%$

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