NCERT Exemplar problems for Class 10 Science Chapter 11 Human Eye and Colourful World Short Answer Questions Question 1. A student sitting at the back of the classroom cannot read clearly the letters written on the blackboard. What advice will a doctor give to her? Draw ray diagram for the correction of this defect. Answer.…
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NCERT Exemplar problems for Class 10 Science Chapter 10 Light Reflection and Refraction Short Answer Questions Question 1. Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself? Explain using a diagram. Answer. Due to variation in speed of light in different medium, light bends as…
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NCERT Exemplar problems for Class 10 Science Chapter 9 Heredity and Evolution Short Answer Questions Question 1. Do genetic combination of mothers play a significant role in determining the sex of new born? Answer. No, mothers have no role in determining the sex of the new born. Mothers have a pair of X chromosome. And…
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NCERT Exemplar problems for Class 10 Science Chapter 8 How do Organisms Reproduce ? Short Answer Questions Question.1 In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation. Answer. Removal of stamens of a bisexual flower will not affect pollination…
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NCERT Exemplar Class 10 Science Chapter-7 Control And Coordination Short Answer Type Questions 1.Label the parts (a), (b), (c) and (d) and show the direction of flow of electrical signals in the given figure. Answer. (a) Sensory neuron. (b) Spinal cord (CNS). (c) Motor neuron. (d) Effector (Muscle in arm). 2.Name the plant hormones responsible…
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NCERT Exemplar Class 10 Science Chapter-6 Life Processes Short Answer Type Questions 1.“All plants give out oxygen during day and carbon dioxide during night”. Do you agree with this statement? Give reason. Answer.Yes, respiration takes place throughout the day and night but photosynthesis takes place only during day time. During day time, as the…
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NCERT Exemplar problems for Class 10 Science Chapter 5 Periodic Classification of Elements Short Answer Questions Question.1 “Hydrogen occupies a unique position in the Modern Periodic Table”. Justify the statement. Answer. Hydrogen resembles with both group 1 (Alkali metals) as well as group 17 (Halogens), therefore, it occupies a unique position in the Modern Periodic…
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NCERT Exemplar problems for Class 10 Science Chapter 4 Carbon and its Compounds Short Answer Questions Question.1 Draw the electron dot structure of ethyne and also draw its structural formula. Answer. Question.2 Write the names of the following compounds. Answer. (a) Pentanoic acid (b) 1-Butyne (c) Heptanal (d) 1-Pentanol Question.3 Identify and name the functional…
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NCERT Exemplar Class 10 Science Chapter-3 Metals And Non-Metals Short Answer Type Questions 1.Iqbal treated a lustrous, divalent element M with sodium hydroxide. He observed the formation of bubbles in reaction mixture. He made the same observations when this element was treated with hydrochloric acid. Suggest how can he identify the produced gas. Write chemical…
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NCERT Exemplar problems for Class 10 Science Chapter 2 Acids, Bases And Salts Short Answer Type Questions 1.Match the acids given in Column (A) with their correct source given in Column (B). Ans.(a) —> (iv) (b) —> (iii) (c) —> (ii) (d) —> (i) Lactic acid is present in curd, acetic acid is present in…
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