Question

,VERY SHORT ANSWER QUESTIONS


1)You are provided with a mixture of petroleum and water. Can

you suggest a method to separate the two?


2)What does CNG stand for and why is it considered to be a better

fuel than petrol?


3) Name the petroleum product used as fuel for stoves, lamps and

jet aircrafts.


4)Fill in the blanks in the following sentences.


(a) Coal is one of the ________ used to cook food.


(b) When heated in air, coal burns and produces mainly ________

gas.


(c) Coal tar is a black, thick ________ with an ________ smell.


(d) Petroleum, ________ and ________ are fossil fuels.


(e) Forests and coal are ________ natural resources.​

Answer 1

Answer:

1.Use a separating funnel since the petrolium floats above the water. Just let the mixture stand. Petrolium and water are not soluble, so they will eventually separate. Since the petrol is lighter than the water, it will form a layer on top, and can be drawn off using a seperating Funnel.

2. CNG stands for Compressed Natural Gas. It's better fuel than petrol because it is non toxic and does not contain large number of pollutants and it does not contaminate ground water.

3.Kerosene

4.

a) fuels

b)Carbon Dioxide

c)Liquid, Unpleasant

d)Coal and Natural Gas

e)Exhaustible