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