No. of questions -40
Time - 20 min
Negative marking : -0.25 mark
1.
The sugar which is not a disaccharide
2.
The brand name Teflon represents which polymer?
3.
Bakelite is a polymer of Phenol and
4.
Acid rain is caused due to emission of which of the following into the atmosphere?
5.
Which among the following is false about natural rubber
6.
Which of the following element is used for vulcanisation of rubber?
7.
Which one of the following is a synthetic polymer?
8.
The water pollution in river is measured by the dissolved amount of-
9.
Deficiency of which one of the following causes xeroph-thalmia-
10.
The alkaloid naturally found in coffee, cocoa and colanut is
11.
Yeast is an important source of-
12.
Consider the following-
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above-Deselect Answer
14.
The increasing amount of carbon dioxide in the air is slowly raising, the temperture of the atmosphere, because it absorbs-
15.
The increasing abundance of green house gases in atmosphere has led to the following effect except-
16.
Petroleum is a mixture of-
17.
Which of the following could be used as fuel in propellant of Rockets?
18.
In chemistry, soap is a salt of a ............
19.
Glycogen, Cellulose and starch are the polymers of-
20.
Wax used for making candles is chemically a mixture of-
21.
Which is widely used in the plastic industry for manufacturing Bakelite?
22.
The helical structure of protein is stabilized by
23.
What is the bond between two amino acids in a protein called?
24.
Which among the following is a petroleum wax?
25.
Which of the following is used as raw material for the manufacture of rayon?
26.
Which one of the following is non-reducing sugar?
27.
............. fibre is used in making bullet proof vests.
28.
Which fibre is used for making bristles of brushes.
29.
Which one of the following is a Natural Polymer?
30.
Barbituric acid and its derivatives are well known as-
31.
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
32.
Plastic bottles are made of a polymer called PET. The expanded form of PET is
33.
Which one of the following vitamins is essential for coagulation of blood?
34.
Physico-chemical characteristics of water in water sources undergo changes due to-
35.
Deficiency of which vitamin results in inflammation of skin and eczema along with diarrhoea?
36.
Which of the following is related to the discovery of Nylon?
37.
What is the full form of PVC?
39.
The gas which is present in both the natural gas and the bio-gas is-
40.
Which one of the following diseases caused through the wound or injury or surfaces of unsterilized surgical instruments?
