Q1. The gas that causes suffocation and death when coal or coke is burnt in a closed room is
(a) Methane
(b) Ethane
(c) Carbon monoxide
(d) Carbon di-oxide
Q2. Atoms having the same number of protons but different number of neutrons are called:
(a) Isotopes
(b) Cations
(c) Higgs-boson
(d) Anions
(a) nanometer
(b) Fermi
(c) angstrom
(d) micron
(a) Nitrogen
(b) Hydrogen
(c) Oxygen
(d) Carbon
Q5. Fat soluble vitamins are
(a) Tocopherol, Niacin, Cyanocobalamin
(b) Calciferol, Carotene, Tocopherol
(c) Ascorbic acid, Calciferol, Riboflavin
(d) Thiamine, Carotene, Biotin
Q6. Heart attack occurs due to
(a) Bacterial attack on the heart
(b) Stopping of heart beat
(c) Lack of supply of blood to the heart itself
(d) Impairment of heart’s working due to unknown reasons
Q7. The colour change in the Chameleon is due to the presence of
(a) Haemoglobin
(b) Chromatophore
(c) Chlorophyll
(d) Pneumatophore
(a) Fertile male
(b) Fertile female
(c) Sterile male
(d) Sterile female
Q9. Which is the purest form of iron?
(a) Steel
(b) Cast iron
(c) Pig iron
(d) Wrought iron
Q10. Detergents used for cleaning clothes and utensils contain
(a) nitrates
(b) bicarbonates
(c) sulphonates
(d) bismuthates
Q11. The candela is one of the seven base units in the SI system. It measures…?
(a) Magnetism
(b) Luminous intensity
(c) Combustion rate
(d) Luminance
Q12. Curd is sour due to presence of
(a) Tartaric acid
(b) Lactic acid
(c) Acetic acid
(d) Oxalic acid
Q13. Onion is a modified form of:
(a) Leaf
(b) stem
(c) root
(d) none of these
Q14. The abnormal constituent of urine is
(a) urea
(b) creatinine
(c) albumin
(d) sodium
Q15. Nitrogenous food is
(a) Carbohydrate
(b) Lipid
(c) Protein
(d) Salts
