No. of questions -40
Time - 20 min
Negative marking : -0.25 mark
3.
The gas which is present in both the natural gas and the bio-gas is-
4.
Acid rain is caused due to emission of which of the following into the atmosphere?
5.
The sugar which is not a disaccharide
6.
The alkaloid naturally found in coffee, cocoa and colanut is
7.
Consider the following-
1. Nucleic acids
2. Carbohydrates
3. Proteins
A virus is made up of which of the above-Deselect Answer
8.
Which of the following is related to the discovery of Nylon?
9.
The water pollution in river is measured by the dissolved amount of-
10.
Which is widely used in the plastic industry for manufacturing Bakelite?
11.
Which fibre is used for making bristles of brushes.
12.
Which among the following is false about natural rubber
13.
............. fibre is used in making bullet proof vests.
14.
Wax used for making candles is chemically a mixture of-
15.
Physico-chemical characteristics of water in water sources undergo changes due to-
16.
What is the bond between two amino acids in a protein called?
17.
Which one of the following sets of elements was primarily responsible for the origin of life on the Earth?
18.
Which of the following is used as raw material for the manufacture of rayon?
19.
Deficiency of which one of the following causes xeroph-thalmia-
20.
Which one of the following diseases caused through the wound or injury or surfaces of unsterilized surgical instruments?
21.
Yeast is an important source of-
22.
Which one of the following is a synthetic polymer?
23.
Glycogen, Cellulose and starch are the polymers of-
24.
Petroleum is a mixture of-
25.
The helical structure of protein is stabilized by
26.
Which one of the following is non-reducing sugar?
27.
Barbituric acid and its derivatives are well known as-
28.
Which among the following is a petroleum wax?
29.
Bakelite is a polymer of Phenol and
30.
Deficiency of which vitamin results in inflammation of skin and eczema along with diarrhoea?
31.
Which one of the following is a Natural Polymer?
32.
What is the full form of PVC?
33.
Which of the following element is used for vulcanisation of rubber?
34.
The increasing abundance of green house gases in atmosphere has led to the following effect except-
35.
In chemistry, soap is a salt of a ............
36.
The increasing amount of carbon dioxide in the air is slowly raising, the temperture of the atmosphere, because it absorbs-
37.
The brand name Teflon represents which polymer?
38.
Plastic bottles are made of a polymer called PET. The expanded form of PET is
39.
Which one of the following vitamins is essential for coagulation of blood?
40.
Which of the following could be used as fuel in propellant of Rockets?
