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Question 1:-

Topic – B1.1 (Characteristics of living organisms)

Which is not a characteristic of all living organisms?
A excretion
B growth
C photosynthesis
D sensitivity

▶️Answer/Explanation

Ans : C

Question 2:-

Topic – B3.2 (Osmosis)

The diagram shows a specialised cell from a plant.

Which structures not found in animal cells are shown in the diagram and which structure often found in other plant cells is missing?

▶️Answer/Explanation

Ans : D

Question 3:-

Topic – B4.1 (Biological molecules)

Which row shows the elements and the small molecules that are used to make the larger molecules?

▶️Answer/Explanation

Ans : D

Question 4:-

Topic – B5.1 (Enzymes)

Which type of molecules speed up chemical digestion?
A carbohydrates
B enzymes
C hormones
D fatty acids

▶️Answer/Explanation

Ans : B

Question 5:-

Topic – B6.1 (Photosynthesis)

The graph shows the effect of increasing light intensity on the rate of photosynthesis of a submerged aquatic plant.

Which factor is limiting the rate of photosynthesis at X?
A carbon dioxide concentration
B humidity
C light intensity
D temperature

▶️Answer/Explanation

Ans : C

Question 6:-

Topic – B7.3 (Digestion)

What is one of the functions of bile?
A denaturing lipase
B digesting fats
C emulsifying fats
D increasing acidity

▶️Answer/Explanation

Ans : C

Question 7:-

Topic – B9.3 (Blood vessels)

The diagram shows the circulatory system of a mammal.

Which row shows the correct names for blood vessels X and Y and for chamber Z?

▶️Answer/Explanation

Ans : D

Question 8:-

Topic – B12.1 (Respiration)

During cold weather, warm blooded animals, such as mammals and birds, require more food.
Which statement explains the reason for this?

▶️Answer/Explanation

Ans : A

Question 9:-

Topic – B13.1 (Coordination and response)

The diagram shows an experiment using the shoots of seedlings.

Which statement explains why the covered shoot tip does not grow towards the light?
A The lightproof cover decreases auxin production by the shoot tip.
B The lightproof cover keeps auxin distribution even on all sides of the shoot.
C The lightproof cover prevents auxin from diffusing from the shoot tip.
D The lightproof cover stimulates cell elongation without requiring auxin.

▶️Answer/Explanation

Ans : B

Question 10:-

Topic – B15.2 (Sexual reproduction)

The diagram shows a section through a flower.

Which labelled structures are the anther and the ovary?

▶️Answer/Explanation

Ans : D

Question 11:-

Topic – B17.2 (Selection)

Which process results in the development of strains of antibiotic-resistant bacteria?
A artificial selection
B discontinuous variation
C natural selection
D selective breeding

▶️Answer/Explanation

Ans : C

Question 12:-

Topic – B18.2 (Food chains and food webs)

The diagram shows a food web.

Which groups of organisms are both primary and secondary consumers?
A fish and jellyfish
B fish and shellfish
C seabirds and turtles
D shellfish and zooplankton

▶️Answer/Explanation

Ans : A

Question 13:-

Topic – B19 (Human influences on ecosystems)

The flow diagram shows the consequence of the overuse of fertilisers on farm land.
leaching fertiliser → fast growth of algae → death of algae → fast growth of X → death of fish
Which group of organisms is represented by X?
A decomposers
B fish
C invertebrates
D plants

▶️Answer/Explanation

Ans : A

Question 14:-

Topic – C12 (Experimental techniques and chemical analysis)

Hexane and octane are liquid hydrocarbons that mix together.
Which apparatus is used to separate a mixture of these two liquids?

▶️Answer/Explanation

Ans : D

Question 15:-

Topic – C2 (Atoms, elements and compounds)

When solid zinc carbonate is heated, a different solid and a gas are formed.
Which type of change occurs?
A chemical
B exothermic
C physical
D separation

▶️Answer/Explanation

Ans : A

Question 16:-

Topic- C3 (Stoichiometry)

An atom of osmium is represented by \(_{76}^{190}\textrm{Os}\).
How many neutrons are in this atom?
A 76 B 114 C 190 D 266

▶️Answer/Explanation

Ans : B

Question 17:-

Topic – C4 (Electrochemistry)

Aqueous potassium bromide reacts with aqueous silver nitrate to produce a cream precipitate.
What is the ionic equation for this reaction?
A Ag⁺(aq) + Br^–(aq) → AgBr(s)
B Ag²⁺(aq) + 2Br^–(aq) → AgBr2(s)
C K⁺(aq) + NO₃^–(aq) → KNO3(s)
D 2K⁺(aq) + NO₃^2–(aq) →K₂NO₃(s)

▶️Answer/Explanation

Ans : Question Discounted

Question 18:-

Topic – C5 (Chemical energetics)

Which statement about the extraction of aluminium from its ore by electrolysis is correct?
A Aluminium gains electrons from the anode.
B Aluminium ions are oxidised at the cathode.
C Aluminium ore is called cryolite.
D Aluminium oxide is in the electrolyte.

▶️Answer/Explanation

Ans : D

Question 19:-

Topic – C6 (Chemical reactions)

Which statement explains why increasing the concentration of reactants increases the rate of a reaction?
A The proportion of particles that possess the activation energy is greater.
B The particles collide more frequently.
C The particles collide more slowly.
D The particles collide with greater energy.

▶️Answer/Explanation

Ans : B

Question 20:-

Topic – C7 (Acids, bases and salts)

Copper(II) sulfate is produced by reacting copper(II) oxide with dilute sulfuric acid.
The stages in the process to produce pure dry crystals are listed.
1 Leave to crystallise in a cool place.
2 Filter the reaction mixture.
3 Press the crystals between dry filter papers.
4 Add copper(II) oxide until it is in excess.
5 Heat the filtrate to concentrate it.
6 Heat the dilute sulfuric acid.
What is the correct order for these stages?
A 6 → 4 →2 → 5 → 3 → 1
B 6 → 4 → 1 → 2 → 5 → 3
C 6 → 4 → 2 → 5 →1 → 3
D 4 → 6 → 2 → 1 → 5 → 3

▶️Answer/Explanation

Ans : C

Question 21:-

Topic – C8 (The Periodic Table)

The box lists four substances.

Which substance is an element that forms a basic oxide and coloured compounds?
A Br₂ B CO C Cu D Na

▶️Answer/Explanation

Ans : C

Question 22:-

Topic – C9 (Metals)

Car engines produce pollutant gases.
Which gases are removed by catalytic converters?
A carbon monoxide, nitrogen monoxide and sulfur dioxide
B carbon monoxide and nitrogen monoxide only
C nitrogen monoxide and sulfur dioxide only
D carbon dioxide and sulfur dioxide

▶️Answer/Explanation

Ans : B

Question 23:-

Topic – C10 (Chemistry of the environment)

In the blast furnace, which substance is added to make slag?
A calcium carbonate
B carbon dioxide
C carbon monoxide
D coke

▶️Answer/Explanation

Ans : A

Question 24:-

Topic – C9 (Metals)

Which catalyst is used in the Contact process?
A iron
B phosphoric(V) acid
C nickel
D vanadium(V) oxide

▶️Answer/Explanation

Ans : D

Question 25:-

Topic – C11 (Organic chemistry)

Which statements about limestone are correct?
1 It contains calcium oxide.
2 It is used to manufacture lime.
3 It neutralises acidic industrial waste products.
4 It neutralises alkaline soil.
A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

▶️Answer/Explanation

Ans : C

Question 26:-

Topic – C11 (Organic chemistry)

Naphtha is obtained by the fractional distillation of petroleum.
Which statements about naphtha are correct?
1 It burns to form carbon dioxide and water.
2 It is a mixture of hydrocarbons.
3 It is present in bottled gas.
4 The main component of naphtha is methane.
A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

▶️Answer/Explanation

Ans : A

Question 27:-

Topic – C11 (Organic chemistry)

The structure of an addition polymer is shown.

Which monomer is used to make this polymer?

▶️Answer/Explanation

Ans : B

Question 28:-

Topic – P1 (Motion, forces and energy)

The diagram shows the speed–time graph for an object moving in a straight line.

Which statement about the motion of the object is not correct?
A The acceleration is constant during the first 10 s.
B The acceleration steadily increases and then becomes constant.
C The rate of change of speed is constant during the first 10 s.
D The speed steadily increases and then becomes constant.

▶️Answer/Explanation

Ans : B

Question 29:-

Topic – P1 (Motion, forces and energy)

A uniform beam has a mass of 12 kg and a length of 4.0 m. The beam rests on horizontal ground.
One end of the beam is now raised from the ground by a vertical force F. The other end of the beam remains in contact with the ground and acts as a pivot.

The gravitational field strength g is 10 N/ kg.
What is the value of F?
A 6.0 N B 24 N C 60 N D 240 N

▶️Answer/Explanation

Ans : C

Question 30:-

Topic – P1 (Motion, forces and energy)

A solid block of weight 14 N rests on a horizontal table. The pressure on the table due to the block is 70Pa.
What is the area of the surface of the block in contact with the table?
A 0.20 m² B 5.0 m² C 98 m² D 980 m²

▶️Answer/Explanation

Ans : A

Question 31:-

Topic – P2 (Thermal physics)

Which object is mainly responsible for the energy stored in tides in the sea?
A Mars
B the Earth
C the Moon
D the Sun

▶️Answer/Explanation

Ans : C

Question 32:-

Topic – P3 (Waves)

Which statement about gas particles is not correct?
A Increasing the temperature of a gas makes the gas particles move more slowly.
B The gas particles are in constant random motion.
C The pressure of a gas is caused by the collision of gas particles with the container.
D Very small particles suspended in a gas are in constant random motion.

▶️Answer/Explanation

Ans : A

Question 33:-

Topic – P3 (Waves)

Two methods of cooking are grilling under a red-hot heater and frying in a shallow metal pan.

How does thermal energy pass through the air to reach the food in method 1 and how does thermal energy pass through the bottom of the metal pan in method 2?

▶️Answer/Explanation

Ans : C

Question 34:-

Topic – P3 (Waves)

An object is placed in front of a plane mirror on a wall.
What are the characteristics of the image formed?
A same size as object and inverted top to bottom
B same size as object and laterally inverted (left to right)
C smaller than object and inverted top to bottom
D smaller than object and laterally inverted (left to right)

▶️Answer/Explanation

Ans : B

Question 35:-