CBSE Class 10 Chemistry MCQs Set A

Question :  The electrolytic decomposition of water gives H2 and O2 in the ratio of a) 2 : 1 by volume b) 1 : 2 by volume c) 8 : 1 by mass d) 1 : 2 by mass Answer :  2 : 1 by volume   Question :  Methane on combustion gives a) both CO2 & H2O b…

CBSE Class 10 Science Heredity and Evolution MCQs

Question. Which of the following plants did Mendel choose for his experiments?          (a) Pisum sativum (b) Hibiscus rosa-sinensis (c) Mirabilis jalapa (d) None of these Answer : A Question. Which of these is not a part of Darwinism? …

CBSE Class 10 Science Metals and Non Metals MCQs

Question : Which is the least conductor of heat a) Lead b) Gold c) Platinum d) Silver Answer : Lead   Question : Metal have ______no. of electrons in their outer most shell a) 1 to 3 b) 1 to 8 c) 7 to 9 d) 10 to 12 Answer : 1 to 3   Question : Which…

CBSE Class 10 Science MCQs Set A

Question. Blueprint of body design and function is (a) DNA. (b) RNA (c) Protoplasm (d) Cytoplasm Question. Characters that are transmitted from parents to offspring during reproduction show. (a) Only similarities with parents (b) Only variations with parents (c) Both…

CBSE Class 10 Science Practical Skills MCQs

  PRACTICAL SKILLS IN SCIENCE Question. A student determines the focal length of a device X, by focusing the image of a far off object on the screen positioned as shown in the figure below. The device X is a: (1) Convex lens (2) Concave lens (3) Convex mirror (4…

CBSE Class 10 Science Practical Skills MCQs

PRACTICAL SKILLS IN SCIENCE SECTION - A Question. A student was asked by the teacher to mix the white of an egg with water taken in a beaker and then stir it well. The student would observe that: (1) a pale yellow transparent solution is formed (2) an opaque suspension…

CBSE Class 10 Science MCQs Set 9

SECTION A Question. The correct order which describes the true solution, colloidal solution and suspension in the order of their increasing stability is : (a) Suspension < colloidal solution < true solution (b) Colloidal solution < true solution < suspension (c)…

CBSE Class 10 Science MCQs Set 8

Question. A student was asked to mix the white of an egg with water and stir well. The student observed that (a) a transparent solution is formed. (b) a translucent mixture is formed. (c) egg white settles down at the bottom. (d) egg white floats on the surface of the water…

CBSE Class 10 Science MCQs Set 7

    11. A student added 2 drops of iodine solution into 4 ml of starch solution in test tube A,another student added 2 ml of starch solution into 4 ml of iodine solution in test tube B. They would then observe (a) a change of colour to blue…

CBSE Class 10 Science MCQs Set 5

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CBSE Class 10 Science MCQs Set 4 Answers

CBSE Class 10 Science MCQs Set 4 Answers. Multiple choice questions have become an integral part of the CBSE examination system. Almost all exams have a section for MCQs. Students are advised to refer to the attached MCQ database and practice them regularly. This will help…

CBSE Class 10 Science MCQs Set 3

SECTION-A       ANSWER KEY