Using fertilizers in farming is an example of
- ✓High cost production
- BLow cost production
- CModerate cost production
- DNo cost production
Answer: A.
View full solution →Question types
Model Paper 2 question types
45 questions across 6 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
45
Questions
6
Question groups
5
Question types
01
M.C.Q. [1 M]
16 Q→02Assertion (A) & Reason (B) MCQ
4 Q→03Que-Ans (Each of 2 Mark )
8 Q→04Que-Ans (Each of 3 Mark )
9 Q→05Que-Ans (Each of 5 Mark )
5 Q→06Case study ( 4 Marks )
3 Q→Sample Questions
Model Paper 2 questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
The particles of the colloidal solution are
- ✓visible with a powerful microscope
- Bnot visible with a powerful microscope
- Cvisible with the naked eye
- Dvisible with a simple microscope
Answer: A.
View full solution →Which one of the following will result in the formation of a mixture?
- ABreaking of ice cubes into small pieces
- BAdding sodium metal to water
- ✓Agitating a detergent with water in a washing machine
- DCrushing of a marble tile into small particles
Answer: C.
View full solution →Lysosomes arises from
- ANucleus
- ✓Golgi apparatus
- CEndoplasmic reticulum
- DMitochondria
Answer: B.
View full solution →Which is the most widely distributed connective tissue?
- ABlood
- BLymph
- CAdipose connective tissue
- ✓Areolar connective tissue
Answer: D.
View full solution →Assertion (A): Cathode rays get deflected towards the positive plate of electric field.
Reason (R): Cathode rays consist of negatively charged particles known as electrons.
Reason (R): Cathode rays consist of negatively charged particles known as electrons.
- ✓Both A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is not the correct explanation of A
- CA is true but R is false
- DA is false but R is true
Answer: A.
View full solution →Assertion (A): Parenchyma tissue consists of relatively unspecialized cells with thin cell walls and is usually loosely packed
Reason (R): They do not have spaces between them.
Reason (R): They do not have spaces between them.
- ABoth A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is not the correct explanation of A
- ✓A is true but R is false
- DA is false but R is true.
Answer: C.
View full solution →Assertion (A): An iron almirah is a solid at room temperature.
Reason (R): Water can flow and it assumes the shape of the containing vessel.
Reason (R): Water can flow and it assumes the shape of the containing vessel.
- ABoth A and R are true and R is the correct explanation of A
- ✓Both A and R are true but R is not the correct explanation of A.
- CA is true but R is false
- DA is false but R is true
Answer: B.
View full solution →Assertion $(A)$ : If a particle is moving with constant velocity, then the average velocity for any time interval is equal to instantaneous velocity.
Reason $(R)$ : If average velocity of a particle moving on a straight line is zero for a given time interval, then instantaneous velocity at some instant within this interval may be zero.
Reason $(R)$ : If average velocity of a particle moving on a straight line is zero for a given time interval, then instantaneous velocity at some instant within this interval may be zero.
- ABoth $A$ and $R$ are true and $R$ is the correct explanation of $A$.
- ✓Both $A$ and $R$ are true but $R$ is not the correct explanation of $A$
- C$A$ is true but $R$ is false
- D$A$ is false but $R$ is true
Answer: B.
View full solution →List any three distinguishing features between the models of an atom proposed by J.J. Thomson and Ernest Rutherford.
When a force of $40 \ N$ is applied on a body it moves with an acceleration of $5 \ ms^{-2}$. Calculate the mass of the body.
View full solution →Using second law of motion, derive the relation between force and acceleration. A bullet of mass $10 g$ strikes a sand bag with a velocity of $103\ m/s^1$ and gets embedded after travelling $5 \ cm$. Calculate
$i$. the resistive force exerted by the sand bag on the bullet.
$ii.$ the time taken by the bullet to come to rest.
View full solution →$i$. the resistive force exerted by the sand bag on the bullet.
$ii.$ the time taken by the bullet to come to rest.
Why is ice at 273 K more effective in cooling than water at the same temperature?
Why do we see light first and hear the sound later during thunderstorm?
Differentiate between various types of muscular tissues. Draw appropriate diagrams.
Who discovered cells, and how?
There would be no plant life if chloroplasts did not exist. Justify.
i. Explain, why is it difficult to walk on sand?
ii. Why is the recoil of a heavy gun, on firing, not so strong as that of a light gun using the same cartridge?
ii. Why is the recoil of a heavy gun, on firing, not so strong as that of a light gun using the same cartridge?
A test tube loaded with lead shots weighs 50 gf and floats upto the mark 'X' in water. The test tube is then made to float alcohol. It is found that 10 gf of lead shots have to be removed, so as to float it to level 'X'. Find RD of alcohol.
$i.$ To make a saturated solution, $36 g$ of sodium chloride is dissolved in $100 g$ of water at $293K$. Find its concentration at this temperature.
$ii.$ Calculate the mass of glucose and mass of water required to make $200g$ of $25\%$ solution of glucose.
View full solution →$ii.$ Calculate the mass of glucose and mass of water required to make $200g$ of $25\%$ solution of glucose.
Differentiate between
i. Cell wall and cell membrane.
ii. Nuclear region of a bacterial cell and nuclear region of an animal cell.
iii. Prokaryotic cell & eukaryotic cell.
i. Cell wall and cell membrane.
ii. Nuclear region of a bacterial cell and nuclear region of an animal cell.
iii. Prokaryotic cell & eukaryotic cell.
Write the main functions of atleast ten cell components.
i. Write the formula to find the magnitude of the gravitational force between the earth and an object on the earth's surface.
ii. Derive how does the value of gravitational force F between two objects change when
a. distance between them is reduced to half and
b. mass of an object is increased four times.
ii. Derive how does the value of gravitational force F between two objects change when
a. distance between them is reduced to half and
b. mass of an object is increased four times.
i. Suppose the mass of the earth somehow increases by 10% without any change in its size. What would happen to your weight?
ii. Suppose the radius of the earth becomes twice of its present radius without any change in its mass. What will happen to your weight?
ii. Suppose the radius of the earth becomes twice of its present radius without any change in its mass. What will happen to your weight?
Read the following text carefully and answer the questions that follow:
A bee colony consists of a single queen and a large number of worker bees. Drones are present in the early stages but do not occur later on. All the functions of the colony are performed by worker bees. They build the hive, collect food, feed themselves as well as the queen, store food and protect the hive. Genetically, a worker bee does not differ from a queen bee and can even become a laying worker bee, but in most species will produce only male (drone) offspring.
i. Why are drones absent in the mature bee colony?
ii. When and how are drones produced?
iii. What is bee bread?
OR
Why worker bees are females but they do not lay eggs?
A bee colony consists of a single queen and a large number of worker bees. Drones are present in the early stages but do not occur later on. All the functions of the colony are performed by worker bees. They build the hive, collect food, feed themselves as well as the queen, store food and protect the hive. Genetically, a worker bee does not differ from a queen bee and can even become a laying worker bee, but in most species will produce only male (drone) offspring.
i. Why are drones absent in the mature bee colony?
ii. When and how are drones produced?
iii. What is bee bread?
OR
Why worker bees are females but they do not lay eggs?
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