No. of questions -40
Time - 20 min
Negative marking : -0.25 mark
1.
What is the full form of PVC?
2.
Which fibre is used for making bristles of brushes.
3.
Barbituric acid and its derivatives are well known as-
4.
Which of the following is related to the discovery of Nylon?
5.
What is the bond between two amino acids in a protein called?
6.
The alkaloid naturally found in coffee, cocoa and colanut is
7.
Physico-chemical characteristics of water in water sources undergo changes due to-
8.
Bakelite is a polymer of Phenol and
9.
The sugar which is not a disaccharide
10.
Wax used for making candles is chemically a mixture of-
11.
Glycogen, Cellulose and starch are the polymers of-
12.
The increasing abundance of green house gases in atmosphere has led to the following effect except-
13.
Which one of the following is a synthetic polymer?
14.
Yeast is an important source of-
15.
The increasing amount of carbon dioxide in the air is slowly raising, the temperture of the atmosphere, because it absorbs-
16.
Deficiency of which one of the following causes xeroph-thalmia-
17.
Which one of the following is a Natural Polymer?
18.
Acid rain is caused due to emission of which of the following into the atmosphere?
19.
Which among the following is a petroleum wax?
20.
Which among the following is false about natural rubber
21.
Deficiency of which vitamin results in inflammation of skin and eczema along with diarrhoea?
23.
The water pollution in river is measured by the dissolved amount of-
24.
Plastic bottles are made of a polymer called PET. The expanded form of PET is
25.
Consider the following-
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above-Deselect Answer
26.
Which of the following is used as raw material for the manufacture of rayon?
27.
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
28.
Which of the following element is used for vulcanisation of rubber?
29.
Petroleum is a mixture of-
30.
Which one of the following is non-reducing sugar?
31.
Which one of the following vitamins is essential for coagulation of blood?
32.
............. fibre is used in making bullet proof vests.
33.
The brand name Teflon represents which polymer?
34.
Which is widely used in the plastic industry for manufacturing Bakelite?
35.
Which one of the following diseases caused through the wound or injury or surfaces of unsterilized surgical instruments?
37.
The gas which is present in both the natural gas and the bio-gas is-
38.
Which of the following could be used as fuel in propellant of Rockets?
39.
In chemistry, soap is a salt of a ............
40.
The helical structure of protein is stabilized by
