1.
A student takes sodium hydrogen carbonate powder in a test tube and pours 4-5 drops of acetic acid over it. He observes:
2.
If the molecular formula of an organic compound is C8H16, it is
3.
Which of the following is a linear molecule?
4.
A hydrocarbon with molecular mass 72 u is,
5.
Read the question given below
7.
The gas obtained when sodium acetate is heated with sodalime is
8.
Alkynes may be represented by the general formula
9.
The number of C-H bonds in acetylene is
10.
The compounds of carbon and hydrogen are called
11.
A hydrocarbon with molecular mass 72 u is,
12.
The organic compounds containing – OH group are called
13.
Read the question given below
14.
The acid which can produce carbon from the cane sugar
15.
Carboxylic acids are obtained from alcohols by
16.
The gas which decolourises bromine water is
17.
Which of the following is a linear molecule?
18.
The compounds whose names end with yne, have between any two carbon atoms
19.
The gas which decolourises bromine water is
20.
Which of the following is a linear molecule?
21.
Saturated hydrocarbons are called
22.
The gas which decolourises bromine water is
23.
A student takes about 2 ml. ethanoic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He reports the following observations: (I) Immediately a colourless and odourless gas evolves with a brisk effervescence (II) The gas burns lime water milky when passed through it (III) The gas burns with an explosion when a burning splinter is brought near it (IV) The gas extinguishes the burning splinter that is brought near it The correct observations are:
24.
The next higher homologue of propane is
25.
The compounds of carbon and hydrogen are called
26.
Read the question given below
27.
Alkanes may be represented by the general formula
28.
Saturated hydrocarbons are called
29.
The gas obtained when sodium propanoate is heated with sodalime is
30.
Methane gas is also known as
31.
The gas obtained when sodium acetate is heated with sodalime is
32.
Four students added a small amount of ethanoic acid to sodium bicarbonate. The gas evolved was tested for its behaviour with burning splinter and lime water
33.
In an experiment to study the properties of ethanoic acid, a student takes about 3 mL of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that;
34.
Vapours of acetic acid smell:
35.
The compounds whose names end with yne, have between any two carbon atoms
36.
Alkanes may be represented by the general formula
37.
Select the correct observation about dilute solution of acetic acid.
38.
When propane-1-ol is oxidised, the following product is formed:
39.
Read the question given below
40.
In alkenes, the two carbons are joined by a/an
