Ans. d (8)
a. Nylon -66 b. Terylene c. Teflon d. Bakelite Ans. a (16)
a. Nil b. Weak c. Strong d. Very strong Ans. b (6)
a. Neoprene b. Teflon c. Thiokol d. PVC Ans. b (5)
a. Styrene b. Tetrafluoro ethylene c. Vinyl chloride d. Acrylonitrile Ans. d (15)
a. Melamine and tetrafluoroethane b. Malonic acid and hexamethyleneamine c. Melamine and vinyl acetate d. Melamine and formaldehyde Ans. d (8)
a. Protein b. Nylon c. Peptide d. All of these Ans. d (6)
a. They have high molecular weights and high melting points b. They have a high degree of cross- linking by strong C- C bond c. They have linear molecules consisting of very long chains d. They have linear molecules interlinked …
a. Increases b. Decreases c. Remains unchanged d. Uncertain Ans. a (15)
a. Polythene b. Perspex c. Teflon d. Bakelite Ans. c (6)
a. Nylon – 6 b. Teflon c. Terylene d. Bakelite Ans. a (6)
(a) Red algae (b) Green algae (c) Diatoms (d) Brown algae Ans. d (9)
(a) Equisetum (b) Selaginella (c) Marsilea (d) None of these Ans. d (11)
(a) Gamete (b) Zygote (c) Sporogonium (d) Zoospore Ans. b (6)
(a) Starch formation (b) Protein storage (c) General metabolism (d) Enzyme secretion Ans. a (6)
(a) Epilithic (b) Epifolic (c) Coenolithic (d) None of these Ans. a (6)
(a) Bryophytes (b) Gymnosperms (c) Green algae (d) Angiosperms Ans. c (5)
(a) Green algae (b) Red algae (c) Brown algae (d) Blue green algae Ans. b (10)
(a) A large non-motile female gamete and a small non-motile male gamete (b) A large motile female gamete and a small non-motile male gamete (c) A small non-motile female gamete and a large motile male gamete (d) A large non-motile …
(a) Marine water (b) Fresh water (c) Tree (d) Arctic zone Ans. b (7)
(a) Trichome (b) Coenobium (c) Coenocyte (d) Parenchymatous Ans. b (9)
(a) Chlorine (b) Fluorine (c) Iodine (d) Bromine Ans. a (6)
(a) Fungi and bryophyta (b) Algae and bryophyta (c) Algae, fungi and bryophyta (d) Algae and fungi Ans. d (8)
(a) One chloroplast and one pyrenoid (b) One or more chloroplast, each with one pyrenoid (c) One or more chloroplast, each with many pyrenoids (d) None of the above Ans. c (9)
(a) Ulothrix (b) Anabaena (c) Ulva (d) Hydrodictyon Ans. b (11)
(a) Chlamydomonas (b) Ulothrix (c) Spirogyra (d) Acetabularia Ans. a (11)
(a) Green algae (b) Brown algae (c) Red algae (d) Blue green algae Ans. c (8)