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Question 1:

Topic – B1.1 (Characteristics of living organisms)

Which characteristics of living things are demonstrated by phototropism?

1 growth
2 nutrition
3 reproduction
4 sensitivity

(A) 1 and 2

(B) 1 and 4

(D) 3 and 4

▶️Answer/Explanation

Ans: B

Question 2:

Topic – B3.2 (Osmosis)

What is osmosis?
(A) the diffusion of sugar molecules from a concentrated solution to a dilute solution through a partially permeable membrane
(B) the diffusion of sugar molecules from a dilute solution to a concentrated solution through a partially permeable membrane
(C) the diffusion of water molecules from a concentrated solution to a dilute solution through a partially permeable membrane
(D) the diffusion of water molecules from a dilute solution to a concentrated solution through a partially permeable membrane

▶️Answer/Explanation

Ans: D

Question 3:

Topic – B4.1 (Biological molecules) and C12.5 (Identification of ions and gases)

A colourless liquid gives the test results shown.

Which nutrients are in the colourless liquid?
(A) protein, reducing sugar and starch
(B) protein and reducing sugar only
(C) protein and starch only
(D) protein only

▶️Answer/Explanation

Ans: C

Question 4:

Topic – B5.1 (Enzymes)

Which type of molecule are enzymes?
(A) carbohydrate
(B) fat
(C) protein
(D) starch

▶️Answer/Explanation

Ans: C

Question 5:

Topic –

▶️Answer/Explanation

Ans: A

Question 6:

Topic – B7.1 (Diet) and B7.2 (Digestive system)

Which row provides the greatest amount of the nutrient needed to move food through the alimentary canal?

▶️Answer/Explanation

Ans: C

Question 7:

Topic – B8.3 (Transpiration)

The rates of water uptake and loss are measured in four leaves. The results are shown in the table.
Which leaf is least likely to wilt?

▶️Answer/Explanation

Ans: D

Question 8:

Topic – B3.2 (Osmosis)

An experiment is set up, as shown.

What will happen to the level of coloured liquid at X?
(A) It goes down.
(B) It goes up.
(C) It goes up and then down.
(D) It stays the same.

▶️Answer/Explanation

Ans: A

Question 9:

Topic – B13.1 (Coordination and response)

The diagram shows a section through the front of the eye and a front view of the eye.

Which muscles contract when viewing a distant object in dim light?
(A) P and R

(B) P only

(D) Q only

▶️Answer/Explanation

Ans: D

Question 10:

Topic – B15.4 (Sexual reproduction in humans)

The diagram shows human gamete formation and fertilisation.

Which row is correct?

▶️Answer/Explanation

Ans: C

Question 11:

Topic – B17.1 (Variation)

Which statement about variation is correct?
(A) Continuous variation results only from environmental differences.
(B) Continuous variation results only from genetic differences.
(C) Discontinuous variation results only from environmental differences.
(D) Discontinuous variation results only from genetic differences.

▶️Answer/Explanation

Ans: D

Question 12:

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

The diagram shows a North American food web.

Which organism is both a primary and secondary consumer?
(A) birds
(B) owl
(C) snake
(D) squirrel

▶️Answer/Explanation

Ans: D

Question 13:

Topic – C10.2 (Air quality and climate)

The concentration of carbon dioxide in the atmosphere has increased during the last 200 years.
What has contributed to this increase?
(A) burning large areas of forest
(B) increasing use of pesticides
(C) planting more crops
(D) using fewer fossil fuels

▶️Answer/Explanation

Ans: A

Question 14:

Topic – C12.4 (Separation and purification)

A sample of water contains two useful substances, insoluble chalk and a soluble salt.
Which two processes are used to individually separate the insoluble chalk from the soluble salt and from the water?
(A) distillation and chromatography
(B) distillation and crystallisation
(C) filtration and chromatography
(D)) filtration and crystallisation

▶️Answer/Explanation

Ans: D

Question 15:

Topic – C2.3 (Isotopes)

Which statement about isotopes of the same element is correct?
(A) They have the same number of protons but different number of electrons.
(B) They have the same number of protons but different number of neutrons.
(C) They have the same number of neutrons but different number of electrons.
(D) They have the same number of neutrons but different number of protons.

▶️Answer/Explanation

Ans: B

Question 16:

Topic – C6.3 (Redox)

When dilute sodium hydroxide is added to aqueous iron(II) sulfate, insoluble iron(II) hydroxide and aqueous sodium sulfate are formed.
What is the ionic equation for this reaction?
(A) $ Fe^{2+}(aq)+ 2OH^{-}(aq)\rightarrow Fe(OH)_{2}(s)$

(B) $ Fe^{2+}(aq)+ SO{_{4}}^{2-}(aq)+2Na^{+}aq + 2OH^{-}(aq)\rightarrow Fe(OH)_{2}(s) + 2Na^{+}(aq)+SO{_{4}}^{2-}(aq)$

(C) $FeSO_{4}(aq) + 2NaOH(aq) \rightarrow Fe(OH)_{2}(s)+Na_{2}SO_{4}(aq)$
(D) $SO{_{4}}^{2-}(aq) + 2Na^{+}(aq) \rightarrow Na_{2}SO_{4}(aq)$

▶️Answer/Explanation

Ans: A

Question 17:

Topic – C4.1 (Electrolysis)

Concentrated aqueous sodium chloride is electrolysed using inert electrodes.
Which row describes how the number of sodium ions and the number of chloride ions changes during the electrolysis?

▶️Answer/Explanation

Ans: C

Question 18:

Topic – C6.2 (Rate of reaction)

Which change decreases the frequency of collisions between reactant particles?
(A) increasing the concentration of reactant solutions
(B) increasing the pressure on gaseous reactants
(C) increasing the temperature of the reaction mixture
(D) using larger pieces of a solid reactant

▶️Answer/Explanation

Ans: D

Question 19:

Topic – C6.3 (Redox)

Iron displaces copper ions from its aqueous salts.
An equation for this reaction is shown.

$Fe+Cu^{2+}\rightarrow Fe^{2+}+Cu$

What is the reducing agent in this reaction?
(A) Cu

(B) Cu$^{2+}$

(D) Fe$^{2+}$

▶️Answer/Explanation

Ans: C

Question 20:

Topic – C7.1 (The characteristic properties of acids and bases)

Solid S is added to dilute hydrochloric acid in the apparatus shown.

The universal indicator solution shows the pH decreases.
What is solid S?
(A) zinc
(B) zinc carbonate
(C) zinc hydroxide
(D) zinc oxide

▶️Answer/Explanation

Ans: B

Question 21:

Topic – C8.3 (Group VII properties)

Which statements about the halogens are correct?

1 They are diatomic metals.
2 Their atoms have seven outer-shell electrons.
3 Going down the group, they change from solid to liquid to gas.
4 Going down the group, they become darker in colour.
(A) 1 and 2

(B) 1 and 3

(D) 3 and 4

▶️Answer/Explanation

Ans: C

Question 22:

Topic – C8.5 (Noble gases)

Which statement explains why argon is used to fill lamps?
(A) It is a gas.
(B) It is colourless.
(C) It is reactive.
(D) It is unreactive.

▶️Answer/Explanation

Ans: D

Question 23:

Topic – C9.4 (Reactivity series)

W, X, Y and Z are metals.
Three statements about these metals are listed.
1 Metal W reduces the oxide of X.
2 Metal Z is not able to reduce the oxide of W, but it does reduce the oxides of X and Y.
3 Metal X displaces Y from its aqueous solution.
Which row shows the order of reactivity?

▶️Answer/Explanation

Ans: B

Question 24:

Topic – C10.2 (Air quality and climate)

The change in the concentration of carbon dioxide in the atmosphere over time is shown.

Which row identifies the cause of this change and an environmental problem caused by this change?

▶️Answer/Explanation

Ans: B

Question 25:

Topic – C6.3 (Redox)

Which equation does not represent a reaction that occurs in the Contact process?
(A) CaO + SO$_{2}$ → CaSO$_{3}$
(B) H$_{2}$S$_{2}$O$_{7}$ + H$_{2}$O → 2H$_{2}$SO$_{4}$
(C) 2SO$_{2}$ + O$_{2}$ → 2SO$_{3}$
(D) S + O$_{2}$ → SO$_{2}$

▶️Answer/Explanation

Ans: A

Question 26:

Topic – C9.6 (Extraction of metals)

Which word equation describes the manufacture of lime from limestone?
(A) calcium carbonate → calcium hydroxide + carbon dioxide
(B) calcium carbonate → calcium oxide + carbon dioxide
(C) calcium hydroxide → calcium oxide + water
(D) calcium oxide + carbon dioxide → calcium carbonate

▶️Answer/Explanation

Ans: B

Question 27:

Topic – C11.7 (Polymers)

Which row about the formation of condensation polymers is correct?

▶️Answer/Explanation

Ans: D

Question 28:

Topic – P1.5.1 (Effects of forces)

A student tests three identical springs that obey Hooke’s Law. Each spring stretches by 3.0 cm
when a 3.0N load is attached to one end of it.
The three springs are connected together as shown.
A 1.0 N load is placed on the end of the springs. The mass of the springs can be ignored.

What is the total extension of all the springs together?
(A) 1.0 cm

(B) 3.0 cm

(D) 9.0 cm

▶️Answer/Explanation

Ans: B

Question 29:

Topic – P1.5.2 (Turning effect of forces)

The diagram shows a crane supporting a load of 6000 N. The horizontal distance between the load and the pivot is x.
The load is balanced about the pivot by a concrete block of mass 10 000 kg. The horizontal
distance of the concrete block from the pivot is 2.0 m.
Gravitational field strength g is 10N/ kg.

What is the distance of x?
(A) 1.2 m

(B) 3.3 m

(D) 33 m

▶️Answer/Explanation

Ans: D

Question 30:

Topic – P1.7 (Pressure)

A rectangular block weighs 1200 N and has the dimensions shown.

What is the minimum pressure that the block can exert on the ground by standing on one of its faces?
(A) 1.0 N/cm$^{2}$

(B) 8.0 N/cm$^{2}$

(D) 15 N/cm$^{2}$

▶️Answer/Explanation

Ans: B

Question 31:

Topic – P1.2 (Motion)

A brick falls from rest at a height of 45 m above the ground.
The acceleration of free fall g is 10 m/s$^{2}$ . There is no air resistance.

What is the speed of the brick as it hits the ground?
(A) 9.5 m/s

(B) 21 m/s

(D) 450 m/s

▶️Answer/Explanation

Ans: C

Question 32:

Topic – P1.6.3 (Energy resources)

For which energy resource is the Sun the source of all the energy stored?
(A) geothermal
(B) nuclear fission
(C) tidal
(D) wind

▶️Answer/Explanation

Ans: D

Question 33:

Topic – P2.2.2 (Melting, boiling and evaporation)

Which change on its own increases the sensitivity of a liquid-in-glass thermometer?
(A) decreasing the internal diameter of the tube
(B) increasing the internal diameter of the tube
(C) making the thermometer longer
(D) making the thermometer shorter

▶️Answer/Explanation

Ans: A

Question 34:

Topic – P3.4 (Sound)

The amplitude of a sound wave increases, and the frequency of the wave decreases.
What is the effect on the loudness of the sound and on the pitch of the sound?

▶️Answer/Explanation

Ans: B

Question 35:

Topic – P4.2.1 (Electrical charge)

A plastic rod is rubbed with a cloth. The rod becomes positively charged.
Which statement describes why this happens?
(A) Electrons move from the cloth to the rod.
(B) Electrons move from the rod to the cloth.
(C) Protons move from the cloth to the rod.
(D) Protons move from the rod to the cloth.

▶️Answer/Explanation

Ans: B

Question 36:

Topic – P4.2.4 (Resistance)

Which graph is the current–voltage characteristic of a filament lamp?

▶️Answer/Explanation

Ans: D

Question 37:

Topic – P4.3.2 (Series and parallel circuits)

A lamp is connected in four circuits in turn.
The batteries are identical and the resistors are identical.
In which circuit is the lamp the brightest?

▶️Answer/Explanation

Ans: D

Question 38:

Topic – P4.3.1 (Circuit diagrams and circuit components)

The series circuit shown includes a single component hidden in a box. The switch is open.

The switch is now closed and the lamp lights briefly before going off.
The switch is now opened, and then closed again. This time the lamp does not light.
Which symbol represents the component in the box?

▶️Answer/Explanation

Ans: A

Question 39:

Topic – P4.5.3 (Magnetic effect of current)

The diagrams show a wire carrying a current out of the page.
Which diagram shows the pattern of magnetic field lines near the wire?

▶️Answer/Explanation

Ans: D

Question 40:

Topic – P5.2.2 (The three types of nuclear emission)

Electric and magnetic fields can cause deflection of ionising radiation.
Which statements about the deflection are correct?
1 In an electric field, $\alpha$-particles and β-particles are deflected in opposite directions.
2 In a magnetic field, $\alpha$-particles and β-particles are deflected in the same direction.
3 $\gamma$-rays are not deflected by electric fields or by magnetic fields.

(A) 1 and 3

(B) 1 only

(D) 2 only

▶️Answer/Explanation

Ans: A

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