CBSE
Board Central Board of Secondary Education [CBSE]
Class 10th / X
Download Sample Question Paper 2023-24
Subject Science
Document Type PDF
Official Website http://cbseacademic.nic.in/

CBSE Class X Science Sample Question Paper

Download Central Board of Secondary Education [CBSE] Class 10th Science Sample Question Paper 2023-24 PDF Free Online

Download CBSE Class 10th All Subjects Sample Question Paper 2023-24 Here

Download CBSE Class X Science Sample Question Paper

Class X Science Sample Question Paper Download Here

CBSE Class X Science Sample Questions

The colour of the solution observed after 30 minutes of placing zinc metal to copper sulphate solution is
a) Blue
b) Colourless
c) Dirty green
d) Reddish Brown

On adding dilute sulphuric acid to a test tube containing a metal „X‟, a colourless gas is produced when a burning match stick is brought near it. Which of the following correctly represents metal „X‟?
a) Sodium
b) Zinc
c) Copper
d) Silver

An element with atomic number_____ will form a basic oxide.
a) 7 (2,5)
b) 17 (2,8,7)
c) 14 (2,8,4)
d) 11 (2,8,1)

Generally food is broken and absorbed within the body of organisms. In which of the following organisms is it done outside the body?
a) Amoeba
b) Mushroom
c) Paramoecium
d) Lice

Receptors are usually located in sense organs. Gustatory receptors are present in
a) tongue
b) nose
c) eye
d) ear

A farmer wants to grow banana plants genetically similar enough to the plants already available in his field. Which one of the following methods would you suggest for this purpose?
a) Regeneration
b) Budding
c) Vegetative propagation
d) Sexual reproduction

Height of a plant is regulated by:
a) DNA which is directly influenced by growth hormone.
b) Genes which regulate the proteins directly.
c) Growth hormones under the influence of the enzymes coded by a gene.
d) Growth hormones directly under the influence a gene

A sportsman, after a long break of his routine exercise, suffered muscular cramps during a heavy exercise session. This happened due to:
a) lack of carbon dioxide and formation of pyruvate.
b) presence of oxygen and formation of ethanol.
c) lack of oxygen and formation of lactic acid.
d) lack of oxygen and formation of carbon dioxide

An object is placed in front of a convex mirror. Its image is formed :
a) at a distance equal to the object distance in front of the mirror.
b) at twice the distance of the object in front of the mirror.
c) half the distance of the object in front of the mirror.
d) behind the mirror and it‟s position varies according to the object distance.

When light enters the atmosphere it strikes on extremely fine particles, which deflect the rays of light in all possible directions, This is due to –
a) reflection of light
b) atmospheric refraction
c) scattering of light
d) dispersion of light

Which of the following features relates to biodegradable substances?
a) Broken down by biological processes
b) Remain inert
c) Persist in environment for long time
d) May harm the ecosystem

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