Chemistry
The diagram shows an experimental set up for the laboratory preparation of a gas known as marsh gas. It is also present in the air exhaled by animals whose food contain cellulose. Study the diagram and answer the following.
(a) Name the gas collected in the jar.
(b) Write a balanced chemical equation for the above preparation. How is the gas being collected?
(c) Name the type of reaction taking place in this. Why this particular reaction is taking place in this?
Related Questions
When fused lead bromide is electrolysed we observe
- silver fumes at cathode
- silver fumes at anode
- reddish brown fumes formed at anode
- reddish brown fumes formed at cathode
The atomic masses of nitrogen (N), oxygen (O) and neon (Ne) are approximately 14, 16 and 20.18 respectively.
Which of the following statements regarding the number of atoms in 14 g of nitrogen, 16 g of oxygen and 20 g of neon is correct?
P. 14 g of nitrogen contains double number of atoms as 20 g of neon.
Q. 16 g of oxygen contains two times the number of atoms as 14 g of nitrogen.
- Only P
- Only Q
- Both P and Q
- Neither P nor Q
Complete the following by choosing the correct answer from the bracket.
(a) On moving down the group electron affinity …………… (increases/decreases).
(b) The functional group present in acetic acid is …………… (-COOH/-OH/-CHO)
(c) …………… (Concentrated sulphuric acid/Dilute sulphuric acid) is a weak acid and a good electrolyte.
(d) Compounds which contains one —COOH group are known as …………… (monocarboxylic acid/dicarboxylic acid).
(e) Quicklime is not used to dry HCl gas because CaO is …………… (alkaline/acidic) in nature.
Match the following Column I with Column II
Column I Column II (a) Acidic salt 1. Basic copper chloride (b) Non-polar compound 2. Liquid ammonia (c) Ostwald's process 3. Nitric ammonia (d) Used as refrigerant 4. Sodium hydrogen sulphite (e) Basic salt 5. Carbon tetrachloride