1. Tardigrade
  2. Question
  3. Chemistry
  4. Acidified potassium dichromate is treated with compound (.A.) (molecular formula C3H8O ) to form a product (.B.) (molecular formula C3H6O ). (.A.) form a shining silver mirror on warming with ammonical silver nitrate. (.B.) When treated with an aqueous solution of H2NCONHNH2.HCl and sodium acetate gives a product (.C.) . What is the structure of compound (.C.) ?

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Q. Acidified potassium dichromate is treated with compound $\left(\right.A\left.\right)$ (molecular formula $C_{3}H_{8}O$ ) to form a product $\left(\right.B\left.\right)$ (molecular formula $C_{3}H_{6}O$ ). $\left(\right.A\left.\right)$ form a shining silver mirror on warming with ammonical silver nitrate. $\left(\right.B\left.\right)$ When treated with an aqueous solution of $H_{2}NCONHNH_{2}.HCl$ and sodium acetate gives a product $\left(\right.C\left.\right)$ . What is the structure of compound $\left(\right.C\left.\right)$ ?

NTA AbhyasNTA Abhyas 2020

Solution:

$CH_{3}CH_{2}CH_{2}OH\underset{H_{2} S o_{4}}{\overset{ \, \, K_{2} C r_{2} O_{7} \, }{ \rightarrow }}CH_{3}CH_{2}CHO$ ( $B$ - propanal)
$ \, \overset{H_{2} N C O N H N H_{2}}{ \rightarrow }CH_{3}CH_{2}CH=NNHCONH_{2}$ $\left(\right.C\left.\right)$