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Question 1:-

Plant nutrition needs light and water.

Which row shows what else needs to be taken in?

▶️Answer/Explanation

Ans :C

Question 2:-

The diagram shows a cell starting to plasmolyse.

In which direction is osmosis occurring?

A  X to Y      B  Y to X      C  Y to Z      D  Z to Y

▶️Answer/Explanation

Ans 😀

Question 3:-

Which chemical element is found in all proteins, but not in all carbohydrates or fats?

A  carbon

B  hydrogen

C  oxygen

D  nitrogen

▶️Answer/Explanation

Ans 😀

Question 4:-

The Pompeii worm lives in deep-sea hydrothermal vents where average temperatures are often

as high as 68 C.

Which graph represents the activity of enzymes found in the Pompeii worm?

▶️Answer/Explanation

Ans :B

Question 5:-

A plant has leaves which have white parts and green parts. One of the leaves is partly covered by

a piece of black card on both sides. The plant is left in the light for two days.

The leaf is then removed and tested for the presence of starch.

Which row is correct?

▶️Answer/Explanation

Ans :C

Question 6:-

What is assimilation?

A  the movement of digested food molecules into the cells of the body where they are used,

becoming part of the cells

B  the movement of digested food molecules through the wall of the intestine into the blood

C  the passing out of food that has not been digested, as faeces, through the anus

D  the taking of food and drink into the body through the mouth

▶️Answer/Explanation

Ans :A

Question 7:-

The diagram shows a plant shoot that is ringed. This removes the phloem from a section of the shoot.

The plant is left in bright light for 24 hours. Plant tissues are then tested for the presence of

sucrose above the ringed section at P and below the ringed section at Q.

Which row shows the expected results?

▶️Answer/Explanation

Ans :C

Question 8:-

The diagram shows the main structures in the breathing system of humans.

Which row identifies the larynx, bronchus, trachea and bronchioles?

▶️Answer/Explanation

Ans :C

Question 9:-

The diagram shows a section through the skin.

Which labelled structures help to maintain body temperature in the cold?

A 1 and 3     B 1 and 4     C 2and 3     D 3 and 4

▶️Answer/Explanation 

Ans :A

Question 10:-

 Which statements correctly describe the human male gamete?

1  contains enzymes

2  food stores present

3  flagellum present

4  surrounded by a jelly coating

A 1 and 2         B 1 and 3          C 2 and 3          D 3 and 4

▶️Answer/Explanation

Ans :B

Question 11:-

1 The table gives statements about a human haploid nucleus.

Which row is correct?

▶️Answer/Explanation

Ans :B

Question 12:-

 What is the main factor which determines the number of trophic levels in food chains?

A  competition between organisms

B  efficiency of energy transfer between trophic levels

C  removal of a member of a food chain

D  unstable ecosystem due to changing environment

▶️Answer/Explanation

Ans :B

Question 13:-

Which row shows an effect of a human activity on the environment?

▶️Answer/Explanation

Ans 😀

Question 14:-

Substance P is separated into different parts using simple physical techniques.

Substance Q is only separated into simpler parts using chemical processes.

Substance R is not separated into simpler parts by either physical or chemical processes.

Which type of substance are P, Q and R?

▶️Answer/Explanation

Ans 😀

Question 15:-

Hydrogen chloride is a gas. It dissolves in water to form an acidic solution.

Three different samples of hydrogen chloride are listed.

1  73.0 g of hydrogen chloride gas

2  7.30 dm3 of hydrogen chloride gas at r.t.p.

3  730 cm3 of 1.00 mol / dm3 aqueous hydrogen chloride

Which row shows the relative number of moles of hydrogen chloride in these samples?

▶️Answer/Explanation

Ans :C

Question 16:-

Aluminium is extracted from aluminium oxide by electrolysis.

What is added to aluminium oxide in this process?

A  concentrated aqueous sodium chloride

B  cryolite

C  dilute sulfuric acid

D  wate

▶️Answer/Explanation

Ans :B

Question 17:-

Which statements about the reduction of copper(II) oxide by heating with carbon are correct?

1  Copper(II) ions lose electrons.

2  Copper(II) oxide acts as an oxidising agent.

3  Copper(II) oxide loses oxygen.

4 Oxide ions are reduced.

A   1 and 2

B  1 and 4

C  2 and 3

D 3 and 4

▶️Answer/Explanation

Ans :C

Question 18:-

Copper carbonate is insoluble in water.

Which method can be used to make copper carbonate?

A  adding aqueous sodium carbonate to aqueous copper sulfate and filtering off the product

B  adding solid calcium carbonate to aqueous copper sulfate and filtering off the product

C  adding solid copper oxide to solid calcium carbonate and heating the mixture

D  heating copper metal in carbon dioxide

▶️Answer/Explanation

Ans :A

Question 19:-

Which test and its result identifies aqueous bromide ions?

A  adding acidified aqueous silver nitrate forming a cream precipitate

B  adding acidified aqueous silver nitrate forming a white precipitate

C  adding aluminium foil and heating with sodium hydroxide forming a gas that turns red litmus

paper blue

D  adding dilute acid forming a gas that produces a white precipitate when bubbled through

limewater

▶️Answer/Explanation

Ans :A

Question 20:-

Which row about the trends in the elements going down Group I of the Periodic Table is correct?

▶️Answer/Explanation

Ans :C

Question 21:-

An airship containing an unreactive gas floats in air, as shown.

Which gas is used to fill the airship?

A  carbon dioxide

B  helium

C  hydrogen

D  nitrogen

▶️Answer/Explanation

Ans :B

Question 22:-

Duralumin and magnalium are alloys used in the manufacture of aircraft.

They both contain aluminium and another metallic element.

The alloys are made up of ……1…… of each element.

They are used because they are ……2…… than the pure metals.

Which words complete gaps 1 and 2?

▶️Answer/Explanation

Ans :A

Question 23:-

Iron is extracted in the blast furnace.

Which reactions are involved in removing acidic impurities as slag?

1   C + O2 CO2

2   C + CO2 2CO

3   Fe2O3 + 3CO 2Fe + 3CO2

4   CaCO3 CaO + CO2

5   CaO + SiO2 CaSiO3

A  1 and 2 only       B  1, 2 and 3       C 3, 4 and 5       D 4 and 5 only

▶️Answer/Explanation 

Ans 😀

Question 24:-

 Which statements about the reactions in a catalytic converter are correct?

1 The catalyst needs to be hot for the reactions to work.

2 Carbon dioxide is converted to carbon monoxide.

3 It converts pollutant gases into gases present in clean air.

4 Nitrogen and oxygen   combine to form nitrogen monoxide.

A 1 and 2        B 1 and 3       C 2 and 4        D  3 and 4

▶️Answer/Explanatio

Ans :B

Question 25:-

Which substances neutralise acids?

1 lime

2 limestone

3 calcium hydroxide

A 1 and 2 only         B 1 and 3 only          C 2 and 3 only         D 1, 2 and 3

▶️Answer/Explanation

Ans 😀

Question 26:-

Which statements about ethene and but-1-ene are correct?

1 Only ethene reacts with bromine water.

2 They are both formed by cracking alkanes.

3 They both react with steam to form alcohols.

4 They have different general formulae.

A 1 and 2         B 1 and 4          C 2 and 3          D 3 and 4

▶️Answer/Explanation

Ans :C

Question 27:-

The flow chart shows some chemical substances and processes

Which row identifies compound X and process Y?

▶️Answer/Explanation

Ans :A

Question 28:-

An object falls freely in a vacuum.

Which speed–time graph represents the motion of the object?

▶️Answer/Explanation

Ans 😀

Question 29:-

An irregularly shaped object is lowered into a measuring cylinder of water

As the object is lowered into the water, the water level rises from 50 cm3 to 75 cm3 . The object has

a mass of 50 g.

What is the density of the object?

A 0.50 g / cm3            B 0.67 g / cm3               C 1.5 g / cm3                  D 2.0 g / cm3

▶️Answer/Explanation

Ans 😀

Question 30:-

 Which source of energy is non-renewable?

A  hydroelectric

B  nuclear fission

C  tides

D  waves

▶️Answer/Explanation

Ans :B

Question 31:-

The diagram shows an object made partly of wood and partly of iron. Thermal energy is supplied

in the position shown. Point P is marked at the bottom of the object

How does most thermal energy reach point P?

A  by conduction through the iron

B  by conduction through the wood

C  by convection through the iron

D  by convection through the wood

▶️Answer/Explanation 

Ans :A

Question 32:-

2 Light undergoes total internal reflection in an optical fibre.

Which statement explains why this reflection occurs?

A  The angle of incidence is equal to the angle of refraction.

B  The angle of incidence is greater than the angle of reflection.

C  The angle of incidence is greater than the critical angle.

D  The angle of incidence is less than the critical angle.

▶️Answer/Explanation

Ans :C

Question 33:-

Which statement about sound waves is not correct?

A  They are caused by vibrations.

B  They are longitudinal.

C  They transfer energy.

D  They travel in a vacuum.

▶️Answer/Explanation

Ans 😀

Question 34:-

A circuit contains a battery, a fixed resistor, an ammeter and a variable resistor.

The reading on the ammeter is 1.8 mA.

How much charge flows through the variable resistor in 30 s?

A   0.054 C

B   17 C

C   54 C

D  17 000C

▶️Answer/Explanation

Ans :A

Question 35:-

A copper wire has a resistance of 8.0 .

Four of these wires are arranged side by side to form a cable, as shown.

What is the resistance of this cable?

A   0.50

B   2.0

C   32

D  128

▶️Answer/Explanation

Ans :B

Question36 :-

The diagram shows a circuit containing a resistor and an NTC thermistor.

The temperature of the thermistor increases.

What happens to the resistance of the thermistor and what happens to the

voltmeter?

 

▶️Answer/Explanation

Ans :A

Question 37:-

An electrical extension block has four sockets, a cable which can safely take a current of

6A   and a plug. It is protected by a fuse rated at 5A.

The extension block is used with four appliances and the

5A   fuse blows. The owner replaces the

5A  fuse with a 13A fuse.

Why is the extension block now dangerous?

A   The appliances may not receive enough current.

B   The cable may overheat before the fuse blows.

C  The sockets may burn out before the fuse blows.

D  The 13A fuse may blow too soon.

▶️Answer/Explanation

Ans :B

Question 38:-

The diagram shows a wire in a magnetic field. There is a current in the wire in the direction

shown. The direction of the magnetic field is also shown.

The magnetic field causes a force on the wire.

In which direction does this force act?

A   into the page

B   out of the page

C   towards the bottom of the page

D   towards the top of the page

▶️Answer/Explanation

Ans :A

Question 39:-

How do the ionising effect and the penetrating ability of alpha-emissions compare with those of

beta-emissions?

▶️Answer/Explanation

Ans :B

Question 40:-

A radioactive isotope has a half-life of 18 years. A sample contains 80 million atoms of this

isotope.

How long does it take for the number of atoms of this isotope in the sample to decrease to

10 million?

A    2.25 years

B   6.0 years

C   54 years

D   180 years

▶️Answer/Explanation

Ans :C

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