Download App

Carbon and its Compounds — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceCarbon and its Compounds2 Marks
Question
How would you convert:
  1. Ethanol into ethene?
  2. Propanol into propanoic acid?
Name the process in each case and write the equations of the reactions involved.
✓

Answer

  1. Dehydration: Conversion of ethanol into ethene.
$\text{CH}_3-\text{CH}_2\text{OH}\xrightarrow[{(\text{Dehydration})}]{{ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Cons.}\text{H}_2\text{SO}_4;170^\circ\text{C}}\ \ \ \ \ \\ \ \ \ \ \ \ \ }\text{CH}_2=\text{CH}_2+\text{H}_2\text{O}$
  1. Oxidation: Conversion of propanol acid.
​​​​​​$\text{CH}_3\text{CH}_2\text{CH}_2\text{OH}+2[\text{O}]\xrightarrow[{\text{or}\ \text{acidified}\text{K}_2\text{Cr}_2}\text{O}_7]{{ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Alkaline}\text{KmnO}_4;\text{Heat}}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\text{CH}_3\text{CH}_2\text{COOH}+\text{H}_2\text{O}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Questions]" from Carbon and its Compounds→Carbon and its Compounds — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

What is ‘Baking Powder’? How does it make the cake soft and spongy?
→
Give the formulae of the compounds that would be formed by the combination of the following pairs of elements:
a. Mg and $N _2$
b. Li and $O _2$
c. Al and $Cl _2$
d. K and H
→
Why do muscles change their shape in response to a nerve impulse?
→
Potatoes grow well on Anhad’s farm which has soil with a pH of 5.5. Anhad decides to add lot of lime to soil so that he can grow broccoli in the same farm:
  1. Do potatoes grow better in acidic or alkaline soil?
  2. Does broccoli grow better in acidic or alkaline soil?
→
Give a chemical reaction to prove that non-metallic oxides are acidic in nature.
→
Write anyone way in which a thermal power plant differs from a hydro power plant.
→
What is an alloy? Give two examples of alloys.
→
What is an oxidation reaction? Identify in the following reaction.
  1. The substance oxidised.
  2. The substance reduced:
$\text{ZnO + C}\rightarrow\text{Zn + CO}$
→
What happens when an acid reacts with a metal? Give chemical equation of the reaction involved.
→
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
→