(c) Barbituric acid derivatives
Water is often treated with chlorine to
(a) remove hardness
(b) remove suspended particles
(c) increase oxygen content
(d) kill germs
The function of a moderator in a nuclear reactor is
(a) to control the fission
(b) to increase the number of fissile nuclei
(c) to moderate the number of primary neutrons
(d) to slow down the secondary neutrons
Nuclear sizes are expressed in a unit named
Which of the following are saturated fatty acids?
1. Oelic acid
2. Stearic acid
4. Palmitic acid
(a) Only 1
(b) 1 and 3
(c) 2 and 4
(d) All of these
Plant development is influenced by
(a) quality, quantity and duration of light
(b) Quality and during of light
(c) Quality and quantity of light
(d) Quality of light only
Which of the following groups of amino acids contains sulphur?
(a) Leucine and methionine
(b) Methionine and cysteine
(c) Arginine and ornithine
(d) Glycine and serine
In the human body which structure is the appendix attached to?
(a) The stomach
(b) The gall bladder
(c) The small intestine
(d) The large intestine
In computer applications, the abbreviation OS usually refers to
(a) Operating System
(b) Open Software
(c) Order of Significance
(d) Optical Sensor
Assertion (A): Most ocean areas are obligotrophic.
Reason (R): Light is not the primary determinant in the oceans.
(a) A and R are true and R is the correct explanation of A.
(b) A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.