CBSE Class 10th Science Mix Test

Result

CBSE Class 10th Science Mix Test - 8

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A gas is evolved when Dil. Sulphuric Acid reacts with Zinc granules. It gives a pop sound when lit match stick is introduced near it. Identify the gas?

A
Nitrogen

B
Hydrogen

C
Oxygen

D
Carbon dioxide
Question 2
1 / -0

Metal X reacts with Dil. HCl to form Metal Salt and Gas. Identify X?

A
Copper

B
Mercury

C
Silver

D
Zinc
Question 3
1 / -0

In the neutralization reaction when excess of acid is added to an alkali, salt and water are produced. What is the nature of the solution after the reaction occurs?

A
Amphoteric

B
Acidic

C
Basic

D
Neutral
Question 4
1 / -0

Select the option which gives correct function and /or characteristic: of the four parts of human respiratory system

A
Alveoli: Thin-walled sac like structures for exchange of gases.

B
Diaphragm: It is pulled up when we breathe in

C
Trachea: It is supported by bony rings for conducting inspired air

D
Ribs: When we breathe out, ribs are lifted

Solution

Alveoli: Thin-walled sac like structures for exchange of gases.
Question 5
1 / -0

Identify the option that indicates the correct enzyme that is secreted in location L, M and N.L, M and N represent Mouth cavity, stomach and small intestine of the human being.

A

L M N

lipase trypsin pepsin

B

L M N

amylase pepsin trypsin

C

L M N

trypsin amylase lipase

D

L M N

lipase amylase pepsin
Question 6
1 / -0

Given below are the functions of some parts of human circulatory system. Identify the correct match.

A
Pulmonary vein – takes oxygenated blood from body partsto heart

B
Artery – takes oxygenated blood from heart to lung

C
Dorsal aorta – takes deoxygenated blood from heart to body parts

D
Vena cava – takes deoxygenated blood from body parts to right atrium
Question 7
1 / -0

What happens when right and left ventricle contract during pumping of blood by human heart?

A
Blood transferred to the right ventricle and left ventricle simultaneously.

B
Blood is transferred to lungs for oxygenation and is pumped into various organs simultaneously.

C
Blood transferred to the right atrium and left atrium simultaneously.

D
Blood is received from lungs after oxygenation and is received from various organs of the body.

Solution

Blood is transferred to lungs for oxygenation and is pumped into various organs simultaneously.

Question 8

1 / -0

i, ii, iii and iv represent mouth cavity, liver, first part of small intestine and complete small intestine respectively of Human digestive system. Match the labeling referred in column I andcorrelate with the function in column II.

Column I	Column II
i	a. The length of this depends of food the organism eats
ii	b. Initial phase of starch digestion.
iii	c. Increase the efficiency of lipase enzyme action
iv	d. This is the site of the complete digestion of carbohydrates, proteins and fats.

i.- c ; ii – d ; iii – a ; iv- d

i.- b ; ii – c ; iii – d ; iv- a

i.- a ; ii – c ; iii – d ; iv- c

i.- d ; ii – a ; iii – b ;iv - c

Question 9
1 / -0

If a virtual, erect and enlarged image is formed by a lens, then which of the following options are correct?

A
It is a concave lens and the object is placed between pole and focus

B
It is a convex lens and the object is placed between focus and centre of curvature.

C
It is a convex lens and the object is placed between pole and focus

D
It is a concave lens and the object is placed between focus and centre of curvature
Question 10
1 / -0

Consider the situation where:

(i) An object is 3 cm (height)

(ii) Mirror is concave with 6 cm focal length.

(iii) Object is placed at the centre of curvature.

Which of the following options are correct?

A
The mirror will produce an image of magnification +1.5

B
The mirror will produce an image of magnification -1

C
The mirror will produce an image of magnification +1

D
The mirror will produce an image of magnification -1.5
Question 11
1 / -0

If a ray passes from air to glass in a spherical glass slab and passes through the centre of the slab without deviation, then the angle of incidence from air to glass at the point on the glass slab is

A
\(45^{\circ}\)

B
\(0^{\circ}\)

C
\(90^{\circ}\)

D
\(180^{\circ}\)
Question 12
1 / -0

Out of all colours making the white light, which one will deviate the most while it passes through a prism?

A
Red

B
Violet

C
Blue

D
Green
Question 13
1 / -0

Even though rain water is the purest form of water, it acts as an electrolyte. However, distilled water cannot be an electrolyte.

The reason for this is

A
rain water consists of dissolved oxygen

B
rain water consists of dissolved oxides of sulphur

C
rain water consists of dissolved Nitrogen

D
rain water consists of dissolved oxides of Hydrogen
Question 14
1 / -0

The reason for different behaviour (floating) of Mg in dil \(HCl\) is due to

A
Mg is lighter element than dil. \(HCl\)

B
Mg reacts with dil. \(HCl\) to produce \(H_2\) gas which helps in floating

C
Mg reacts with dil. \(HCl\) to produce \(N_2\) gas which helps in floating

D
Mg reacts with dil. \(HCl\) to produce \(CO_2\) gas which helps in floating
Question 15
1 / -0

Which of the following solutions are electrolytes?

i. Dil. HCl

ii. Sugar Solution

iii. Alcohol in water

iv. Lime water

A
i and ii

B
i and iv

C
ii, iii and iv

D
i, ii and iv
Question 16
1 / -0

NalinI draws a ray diagram for an object in front of a concave mirror. She draws a ray starting from the top of the object and falling on the mirror perpendicularly. The ray after reflection will

A
pass through focus

B
pass through pole

C
pass through the centre of curvature

D
pass through any point on the principal axis
Question 17
1 / -0

If the refractive index of water with respect to air is 1.33 and of that of glass with respect to air is 1.5 then

A
water is optically denser than glass.

B
air is optically densest of all the three media.

C
air’s optical density is between glass and air

D
glass is optically denser than water.

Solution

glass is optically denser than water
Question 18
1 / -0

A convex lens has a focal length of 10 cm. The object of height 2 mm is placed at a distance of 5 cm from the pole. Find the height of the image.

A
4 cm

B
6.67 mm

C
4 mm

D
3.33 mm
Question 19
1 / -0

This experimental set up is used to prove essentiality of which of the following requirements of photosynthesis?

A
Chlorophyll

B
Oxygen

C
Carbon dioxide

D
Sunlight
Question 20
1 / -0

The function of KOH is to absorb

A
Oxygen.

B
Carbon dioxide.

C
Moisture.

D
Sunlight
Question 21
1 / -0

Which of the following statements shows the correct results of Iodine Test performed on the leaf from plant A and B respectively

A
Blue - black colour would be–obtained on the leaf of plant A

B
Blue - black colour would be–obtained on the leaf of plant B

C
Red colour would be obtained on the leaf of plant A

D
Red colour would be obtained on the leaf of plant B
Question 22
1 / -0

Which of the following steps can be followed for making the apparatus air tight?

i. placing the plants on glass plate

ii. using a suction pump.

iii. applying Vaseline to seal the bottom of jar.

iv. creating vacuum

A
i and ii

B
ii. and iii

C
i. and iii

D
ii. And iv
Question 23
1 / -0

The phenomenon that she was trying to demonstrate was:

A
Dispersion

B
Reflection

C
Refraction

D
Scattering.
Question 24
1 / -0

The reason why she could no see any other colour when the red light was used was because

A
Red colour does not refract in prism.

B
Red colour is monochromatic

C
The prism was defective.

D
The prism is opaque to red colour
Question 25
1 / -0

Which of the following can be the correct explanation that Pooja can give to her friends to explain this phenomenon?

A
Different lights travel faster in the glass prism at different rates.

B
Any light would disperse in the prism

C
Enough data is not available to make a scientific explanation in this case.

D
Different wavelengths travel at different speeds in the glass.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

L	M	N
lipase	trypsin	pepsin

L	M	N
amylase	pepsin	trypsin

L	M	N
trypsin	amylase	lipase

L	M	N
lipase	amylase	pepsin

CBSE Class 10th Science Mix Test - 8

Result

CBSE Class 10th Science Mix Test - 8

Score

-

Rank

-

SHARING IS CARING

Question 1

Nitrogen

Hydrogen

Oxygen

Carbon dioxide

Question 2

Copper

Mercury

Silver

Zinc

Question 3

Amphoteric

Acidic

Basic

Neutral

Question 4

Alveoli: Thin-walled sac like structures for exchange of gases.

Diaphragm: It is pulled up when we breathe in

Trachea: It is supported by bony rings for conducting inspired air

Ribs: When we breathe out, ribs are lifted

Solution

Question 5

L M N lipase trypsin pepsin

L M N amylase pepsin trypsin

L M N trypsin amylase lipase

L M N lipase amylase pepsin

Question 6

Pulmonary vein – takes oxygenated blood from body partsto heart

Artery – takes oxygenated blood from heart to lung

Dorsal aorta – takes deoxygenated blood from heart to body parts

Vena cava – takes deoxygenated blood from body parts to right atrium

Question 7

Blood transferred to the right ventricle and left ventricle simultaneously.

Blood is transferred to lungs for oxygenation and is pumped into various organs simultaneously.

Blood transferred to the right atrium and left atrium simultaneously.

Blood is received from lungs after oxygenation and is received from various organs of the body.

Solution

Question 8

i.- c ; ii – d ; iii – a ; iv- d

i.- b ; ii – c ; iii – d ; iv- a

i.- a ; ii – c ; iii – d ; iv- c

i.- d ; ii – a ; iii – b ;iv - c

Question 9

It is a concave lens and the object is placed between pole and focus

It is a convex lens and the object is placed between focus and centre of curvature.

It is a convex lens and the object is placed between pole and focus

It is a concave lens and the object is placed between focus and centre of curvature

Question 10

The mirror will produce an image of magnification +1.5

The mirror will produce an image of magnification -1

The mirror will produce an image of magnification +1

The mirror will produce an image of magnification -1.5

Question 11

\(45^{\circ}\)

\(0^{\circ}\)

\(90^{\circ}\)

\(180^{\circ}\)

Question 12

Red

Violet

Blue

Green

Question 13

rain water consists of dissolved oxygen

rain water consists of dissolved oxides of sulphur

rain water consists of dissolved Nitrogen

rain water consists of dissolved oxides of Hydrogen

Question 14

Mg is lighter element than dil. \(HCl\)

Mg reacts with dil. \(HCl\) to produce \(H_2\) gas which helps in floating

Mg reacts with dil. \(HCl\) to produce \(N_2\) gas which helps in floating

Mg reacts with dil. \(HCl\) to produce \(CO_2\) gas which helps in floating

L M N

lipase trypsin pepsin

L M N

amylase pepsin trypsin

L M N

trypsin amylase lipase

L M N

lipase amylase pepsin