chemistry dpp class 4 and 5

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CLASS-4th & 5th

Daily Practice Problem Sheet Subject : Chemistry Topic : Clothing DPPS. NO. – 01 .

OBJECTIVE TYPE QUESTIONS :

Q.1 Plastic bags are made up of completely ……………….. fibres.(A) natural (B) synthetic (C) both (D) none

Q.2 Method of fabric production is known as -(A) stitching (B) joining (C) weaving (D) welding

Q.3 We can get natural fibres from -(A) plants (B) sea-bed (C) animals (D) (A) and (C)

Q.4 Artificial fibres are widely used because of their(A) low cost (B) attractive colours (C) durability (D) sweat-absorbent properties

Q.5 Cotton clothes are preferred in summers because(A) of beautiful designs (B) easy availability(C) they keep us cool (D) they trap heat

Q.6 Why woolen clothes keeps us warm ?(A) They trap body heat (B) They restrict harsh winds(C) They are thick (D) Both (A) and (B)

Q.7 Raincoat is made up of -(A) silk (B) cotton (C) wool (D) polyester

Q.8 Wrinkles from clothes can be removed by -(A) ironing them (B) pressing them hard (C) dry cleaning them (D) wearing them many times

Q.9 Synthetic clothes are not always suitable because -(A) they are wrinkle free (B) they are smooth(C) they are costly (D) they catch fire easily

Q.10 Dry cleaning is done by -(A) kerosene (B) petrol (C) wax (D) water

Q.11 Wool is obtained from/on -(A) plants (B) rocks under the crust (C) animal's upper layer of skin (D) none

Q.12 Which is not used to make fibres -(A) jute (B) wool (C) crude oil (D) cotton


Q.13 Naphthalene balls prevent our clothes from -(A) sun (B) insects (C) bad odour (D) wrinkles

Q.14 A lawyer wears black coat because -(A) he wants to be identified quickly (B) he wants to look attractive(C) he wants to look different (D) he wants to look smart

Q.15 Fibres are ……………. materials from which clothes are made.(A) long, thread-like (B) short, thread-like(C) thick, branch-like (D) liquid




CLASS-4th & 5th

Daily Practice Problem Sheet Subject : Chemistry Topic : Matter DPPS. NO. – 02 .


Q.1 Which of the following does not take the shape of the container it is in?

(A) A pencil (B) Oil (C) Water (D) None of these

Q.2 The change of a substance from the liquid state to the gaseous state is called -

(A) Evaporation (B) Condensation (C) Sublimation (D) Filtration

Q.3 The change of a substance from the gaseous state to the liquid state is called -

(A) Condensation (B) Decantation (C) Sedimentation (D) Evaporation

Q.4 When a substance is directly changed from solid state to gas on heating or from gas to solid on cooling, this

process is called -

(A) Evaporation (B) Condensation (C) Sublimation (D) Vaporization

Q.5 Which of them is most energetic -

(A) Solids (B) liquids (C) gases (D) all of them.

Q.6 State of matter which has a definite shape and fixed volume -

(A) Solid (B) liquid (C) gas (D) none of these.

Q.7 Which of the following is not fluid -

(A) water (B) air (C) sand (D) sharbat

Q.8 Which of the following is correct for something to be called matter -

(A) It should occupy space (B) It should have mass

(C) Both (a) and (b) (D) None of these

Q.9 The compressibility of which state of matter is high -

(A) Solid (B) liquid (C) gas (D) all of these.

Q.10 Which of the following has minimum spaces among the particles ?

(A) Solids (B) Liquids (C) Gases (D) None of these


Q.11 A liquid has -(A) definite volume and no definite shape (B) no definite volume no definite shape(C) definite shape and volume (D) definite shape but no definite volume

Q.12 A gas has -(A) definite volume and no definite shape (B) no definite volume no definite shape(C) definite shape and volume (D) definite shape but no definite volume

Q.13 When a coin is dropped is a glass of water , it will __________.(A) Float (B) Sink (C) Float mid-way (D) Break the glass

Q.14 Which state of matter has a definite shape, a definite volume and cannot flow?(A) Solid (B) Liquid (C) Gas (D) Solid or liquid

Q.15 Which state of matter is represented in the following diagram?

(A) Gas (B) Liquid (C) Gas or liquid (D) Solid




CLASS-4th & 5th

Daily Practice Problem Sheet Subject : Chemistry Topic : Chemical Process DPPS. NO. – 03 .


Q.1 Respiration is a -

(A) physical process (B) chemical process (C) biological process (D) temporary process

Q.2 What is the chemical name of lime water ?

(A) Calcium carbonate (B) Calcium oxide (C) Calcium hydroxide (D) Copper sulphate

Q.3 Which of the following is a physical change ?

(A) Rusting of Iron (B) Heating of Iron (C) Burning of Wood (D) Ripening of a fruit.

Q.4 Which of the following is a chemical change?

(A) Boiling of Water (B) Tearing of Newspaper

(C) Cooking a vegetable (D) Freezing water into ice

Q.5 Which of the following might not tell a chemical change has taken place?

(A) Evolution of gas (B) Light is generated

(C) Production of heat (D) Converting liquid into gas

Q.6 Turning milk into curd is a -

(A) physical change (B) physical property (C) chemical change (D) chemical property

Q.7 The process of obtaining salt by the evaporation of sea water is known as ____________.

(A) Crystallisation (B) Sublimation (C) Galvanisation (D) Amalgamation

Q.8 When carbon dioxide gas is passed through lime water, it turns lime water into ________

(A) milky (B) blue (C) silver (D) golden

Q.9 Formation of gas bubbles is _________.

(A) a physical change (B) a physical property (C) a chemical change (D) a chemical property

Q.10 Breaking of a glass is a-

(A) chemical process (B) physical process (C) biological process (D) none of these


Q.11 Photosynthesis

(A) Physical change (B) Chemical change (C) Both (A) and (B) (D) None of these

Q.12 Melting of wax

(A) Chemical change (B) Physical change (C) Irreversible change (D) None of these

Q.13 Statement - Iron pipes coated with zinc do not get rusted easily.

(A)True (B) False

Q.14 The chemical formula of rust is

(A) Fe2O2 (B) Fe2O (C) Fe2O3 (D) Fe3O4

Q.15 When carbon dioxide is passed through lime water, it turns milky due to the formation of …………..(A) Magnesium carbonate (MgCO3) (B) Calcium carbonate (CaCO3)(C) Calcium Bicarbonate (CaHCO3) (D) Magnesium Bicarbonate (MgHCO3)

Q.16 The chemical name of baking soda is _________.

(A) Vinegar (B) Calcium carbonate(C) Potash Alum (D) Sodium Bicarbonate

Q.17 When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. What type of

change is it?

(A)Chemical change (B) Physical change (C) Biological change (D) None of these

Q.18 Beating aluminium to make aluminium foil is a -

(A) Physical change (B) Chemical change (C) Temporary process (D) Physical property

Q.19 The gas we use in the kitchen is called liquefied petroleum gas (LPG). In the cylinder it exists as a liquid.

When it comes out from the cylinder it becomes a gas (Change − A) then it burns (Change − B). The followingstatements pertain to these changes. Choose the correct one.

(A) Process − A is a chemical change. (B) Both processes A and B are chemical changes.

(C) Process − B is a chemical change. (D) None of these processes is a chemical change.

Q.20 Anaerobic bacteria digest animal waste and produce biogas (Change − A). The biogas is then burnt as fuel(Change − B). The following statements pertain to these changes. Choose the correct one.

(A) None of these processes is a chemical change(B) Process − B is a chemical change(C) Process − A is a chemical change(D) Both processes A and B are chemical changes




CLASS-4th & 5th

Daily Practice Problem Sheet

CHEMISTRYANSWER KEY

DPP-1 : Clothing

Q.No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Ans. B C D C C D D A D B C C B A A

DPP-2 : Matter

Q.No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Ans. A A A C C A C C C A A B B A A

DPP-3 : Chemical Process

Q.No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Ans. B C B C D C A A C B B B A C B D A A C D

chemistry dpp class 4 and 5

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