No. of questions -40
Time - 20 min
Negative marking : -0.25 mark
1.
Which of the following element is used for vulcanisation of rubber?
2.
Which one of the following is non-reducing sugar?
3.
The helical structure of protein is stabilized by
4.
Which of the following could be used as fuel in propellant of Rockets?
5.
The alkaloid naturally found in coffee, cocoa and colanut is
6.
Deficiency of which vitamin results in inflammation of skin and eczema along with diarrhoea?
7.
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
8.
Yeast is an important source of-
9.
Which one of the following vitamins is essential for coagulation of blood?
10.
Which one of the following is a synthetic polymer?
11.
Which of the following is used as raw material for the manufacture of rayon?
12.
What is the full form of PVC?
13.
Glycogen, Cellulose and starch are the polymers of-
14.
Which one of the following is a Natural Polymer?
16.
The water pollution in river is measured by the dissolved amount of-
17.
Which of the following is related to the discovery of Nylon?
18.
Acid rain is caused due to emission of which of the following into the atmosphere?
19.
What is the bond between two amino acids in a protein called?
20.
Deficiency of which one of the following causes xeroph-thalmia-
21.
In chemistry, soap is a salt of a ............
22.
Consider the following-
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above-Deselect Answer
23.
Bakelite is a polymer of Phenol and
24.
Which is widely used in the plastic industry for manufacturing Bakelite?
25.
Plastic bottles are made of a polymer called PET. The expanded form of PET is
26.
The gas which is present in both the natural gas and the bio-gas is-
27.
The increasing abundance of green house gases in atmosphere has led to the following effect except-
28.
The sugar which is not a disaccharide
29.
Petroleum is a mixture of-
30.
Barbituric acid and its derivatives are well known as-
31.
............. fibre is used in making bullet proof vests.
32.
Which among the following is a petroleum wax?
33.
Which among the following is false about natural rubber
34.
Wax used for making candles is chemically a mixture of-
35.
Which one of the following diseases caused through the wound or injury or surfaces of unsterilized surgical instruments?
36.
Physico-chemical characteristics of water in water sources undergo changes due to-
37.
The increasing amount of carbon dioxide in the air is slowly raising, the temperture of the atmosphere, because it absorbs-
38.
The brand name Teflon represents which polymer?
39.
Which fibre is used for making bristles of brushes.
