Chapter 9: Heredity and Evolution
Question 1.A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing whfte flowers. The progeny all bore violet flowers, but almost half of them are short. This suggests that the…
Chapter 8: How do Organisms Reproduce?
Question 1Asexual reproduction takes place through budding in(a) amoeba(b) yeast(c) plasmodium(d) leishmaniaAnswer:(b) Yeast Question 2Which of the following is not a part of the female reproductive system in human beings ?(a) Ovary(b) Uterus(c) Vas deferens(d) Fallopian tubeAnswer:(c)…
Chapter 7: Control and Coordination
Question 1Which of the following is a plant hormone? (a) Insulin(b) Thyroxin(c) Oestrogen(d) Cytokinin Answer:(d) Cytokinin Question 2The gap between two neurons is called a(a) dendrite(b) synapse(c) axon(d) impulseAnswer:(b) Synapse Question 3The brain is responsible for(a) thinking(b)…
Chapter 6: Life Process
NCERT Solutions for Class 10 Science Chapter 6 Textbook Chapter Questions Question 1The kidneys in human beings are a part of the system for(i) nutrition(ii) respiration(iii) excretion(iv) transportationAnswer:(iii) Excretion Question 2The xylem in plants are responsible for(i)…
Chapter 5: Periodic Classification of Elements
1. Which of the following statements is not correct statement about the trends when going from left to right across the periods of Periodic Table? (a) The elements become less metallic in nature. (b) The number of…
Chapter 4: Carbon and Its Compounds
1.Ethane, with the molecular formula C6 has (a) 6 covalent bonds (b) 7 covalent bonds (c) 8 covalent bonds (d) 9 covalent bonds Solution : (b) 7 covalent bonds 2. Butanone is a four carbon compound with the functional…
Chapter 3: Metals and Non-Metals
1. Which of the following pairs will give displacement reactions? (a) NaCl solution and copper metal (b) MgCl2 solution and aluminum (c) FeSO4 solution and silver metal (d) AgNO3 solution and copper Solution : (d) AgNO3 solution and copper 2. Which of…
Chapter 2: Acids Bases and Salts
1. A solution turns red litmus blue, its pH is likely to be(a) 1(b) 4(c) 5(d) 10Solution : (d) 10 2. A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains(a)…
Chapter 1 Chemical Reactions and Equations
Solutions:-(i) (a) and (b) The above reaction is an example of a (a) combination reaction.(b) double displacement reaction. (c) decomposition reaction. (d) displacement reaction Solution:-(d) The given reaction is an example of a displacement reaction 3. What…
Chapter 11: THE PROPOSAL
Thinking About the Play(Page 157) Question 1.What does Chubukov at first suspect that Lomov has come for? Is he sincere when he later says ‘And I’ve always loved you, my angel, as if you were my own…
