Category Samacheer Book Back Questions And Answers

Samacheer Book Back Questions And Answers For Science Standard 9 “Plant Physiology“ I. Choose the correct answer:1. The tropic movement that helps the climbing vines to find a suitable support is _____.(a) Phototropism(b) Geotropism(c) Thigmotropism(d) Chemotropism 2. The chemical reaction…

Samacheer Book Back Questions And Answers For Science Standard 9 “Organisation of Tissues“ I. Choose the correct answer: 1. The tissue composed of living thin walled polyhedral cell is (a) parenchyma (b) pollenchyma (c) pclerenchyma (d) None of above 2.…

Samacheer Book Back Questions And Answers For Science Standard 9 “Animal Kingdom“ I. Choose the correct answer: 1. Find the group having only marine members. (a) Mollusca (b) Coelenterata (c) Echinodermata (d) Porifera 2. Mesoglea is present in (a) Porifera…

Samacheer Book Back Questions And Answers For Science Standard 9 “Applied Chemistry“ I. Choose the correct answer:1. One Nanometre is(a) 10-7 metre(b) 10-8 metre(c) 10-6 metre(d) 10-9 metre 2. The antibiotic Penicillin is obtained from _____.(a) plant(b) microorganism(c) animal(d) sunlight…

Samacheer Book Back Questions And Answers For Science Standard 9 “Carbon and its Compounds“ I. Choose the correct answer:1. A phenomenon in which an element exists in different modification in same physical state is called(a) isomerism(b) allotropy(c) catenation(d) crystallinity 2.…

Samacheer Book Back Questions And Answers For Science Standard 9 “Acids, Bases and Salts“ I. Choose the correct answer:1. Zn + 2 HCl → ZnCl2 + _____↑a. H2b. O2c. CO2 2. Apple contains malic acid. Orange contains _____.a. citric acidb.…

Samacheer Book Back Questions And Answers For Science Standard 9 “Chemical Bonding“ I. Choose the correct answer: 1. Number of valence electrons in carbon is (a) 2 (b) 4 (c) 3 (d) 5 2. Sodium having atomic number 11, is…

Samacheer Book Back Questions And Answers For Science Standard 9 “Periodic Classification of Elements“ I. Choose the correct answer:1. If Dobereiner is related with ‘law of triads’, then Newlands is related with(a) Modem periodic law(b) Hund’s rule(c) Law of octaves(d)…

Samacheer Book Back Questions And Answers For Science Standard 9 “Atomic Structure“ I. Choose the correct answer:1. Among the following the odd pair is(a) 188O, 199F(b) 4018Ar, 147N(c) 3014Si, 3115P(d) 4020Cr, 3919K 2. Change in the number of neutrons in…

Samacheer Book Back Questions And Answers For Science Standard 9 “Matter Around Us“ I. Choose the correct answer:1. The separation of denser particles from lighter particles done by rotation at high speed is called _____.(a) Filtration(b) sedimentation(c) decantation(d) centrifugation 2.…