Question

Dengue fever is caused by:
(A) Anopheles
(B) Aedes
(C) Housefly
(D) Cockroach
Which one of the following is a man-made fibre?
(A) Cotton
(B) Jute
(C) Rayon
(D) Nylon
Polythene is an example of :
(A) thermosetting plastic
(B) rubber
(C) paper
n ot thermoplastic
The main constituents of duralumin are:
(A) AI, Cu, Mn ,Mg
(B) Al, Cu
(C) Al, Mg
(D) Zn, Cu
Your mother takes out an old copper pan and finds that it has become dull and green in colour. The
green colour is due to :
(A) Cu(OH), + Cu
(B) CuCoz
(C) Cu(OH)2+ Cucoz
(D) CuO+ CuCoz
Which one of the following types of coal is of higher quality than bituminous coal?
(A) Peat
(B) Anthracite
(C) Lignite
(D) All of these
Which one of the following is the by product of petroleum?
(A) Diesel
(B) Petrol
(D) All of these
(C) Kerosene
non​

Answer 1

Answer:

1: Dengue fever is caused by Aedes

2: Nylon is fully synthetic man made fibre

3: Polythene is an example of thermoplastics

4: The main constituents of duralumin are Al,Cu, Mn, Mg

5: Cu(OH) 2+CuCO3

6: Anthracite is a higher quality of coal

7: All of these