Question
Name two complexes which are used in medicines.

Answer

  1. The platinum complex, cis-[Pt(NH3)2Cl2] known as cisplatin is used in the treatment of cancer.
  2. Ca–EDTA complex is used in the treatment of lead poisoning.

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Give reasons:
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  2. Ce4+ is used as an oxidising agent in volumetric analysis.
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Name the reagents used in the following reactions:
i. Oxidation of a primary alcohol to carboxylic acid.
ii. Oxidation of a primary alcohol to aldehyde.
iii. Bromination of phenol to 2,4,6-tribromophenol.
iv. Benzyl alcohol to benzoic acid.
v. Dehydration of propan-2-ol to propene.
vi. Butan-2-one to butan-2-ol.
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After watching a programee on TV about the adverse effects of junk food and soft drink on the health of school children, Sonali, a student of class XII, discussed the issue with the school principal. Principal immediately instructed the canteen contractor to replace the fast food with the fibre and vitamins rich food like sprouts, salad, fruits etc. This decision was welcomed by the parents and the students.
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Also calculate the $\Delta_{\text{r}}\text{G}^{\ominus}$ value of the reaction.

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The following data were obtained during the first order thermal decomposition of SO2Cl2 at a constant volume:
SO2Cl2(g) $\rightarrow$SO2(g) + Cl2(g)
Experiment
Time/s–1
Total pressure/atm
1
0
0.4
2
100
0.7
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(Given: log4 = 0.6021, log2 = 0.3010).
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$
$
2 H_2 O \rightarrow O_2+4 H^{+}+4 e^{-}, E^0=1.23 V
$