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