Transition elements — Paper 2 · IGCSE Chemistry (9-1) 0971

23 Which row shows the catalytic activity of transition elements and their compounds? catalytic activity of catalytic activity of compounds of transition elements transition elements A good good B good poor C poor good D poor poor

1 marks

Answer: A

This question in 0971/21 May/June 2018

26 Which statement about the uses of metals is not correct? A Aluminium is used in aircraft because of its strength and good electrical conductivity. B Copper is used in electrical wiring because of its good electrical conductivity. C Stainless steel resists corrosion and is used to make cutlery. D Transition elements are often used as catalysts.

1 marks

Answer: A

This question in 0971/22 Oct/Nov 2018

25 Iron(II) ions can be oxidised to iron(III) ions by hydrogen peroxide. Which statement explains why iron is a transition element? A Iron is a transition element because it can be oxidised. B Iron is a transition element because it has variable oxidation states. C Iron is a transition element because it takes part in redox reactions. D Iron is a transition element because it reacts with chlorine.

1 marks

Answer: B

This question in 0971/22 Oct/Nov 2019

23 The properties of the element titanium, Ti, can be predicted from its position in the Periodic Table. Which row identifies the properties of titanium? forms coloured compounds can be used conducts electricity as a catalyst when solid has low density v v x v v v v x v x v v

1 marks

Answer: B

This question in 0971/21 May/June 2020

23 The properties of the element titanium, Ti, can be predicted from its position in the Periodic Table. Which row identifies the properties of titanium? forms coloured compounds can be used conducts electricity as a catalyst when solid has low density v v x v v v v x v x v v

1 marks

Answer: B

This question in 0971/22 May/June 2020

28 Transition elements can have variable oxidation states. Which pair of compounds shows a transition element in two different oxidation states? A Cr2O3 and Cr2(SO4)3 B Cu2O and CuCO3 C ZnS and ZnSO4 D NiO and Ni(NO3)2

1 marks

Answer: B

This question in 0971/22 Oct/Nov 2020

20 Some reactions of element M are shown. burn add water element M oxide of M solution add to purple acidified add blue litmus potassium manganate(VII) goes colourless goes red What is element M? A carbon B iron C magnesium D sulfur

1 marks

Answer: D

This question in 0971/21 May/June 2021

23 Which elements in the table are transition elements? element property E forms E3+ ions only F forms F+ and F2+ ions G forms only white salts H used in catalytic converters A E and G B E and H C F and G D F and H

1 marks

Answer: D

This question in 0971/21 May/June 2021

23 The diagram shows the positions of elements E, F, G and H in the Periodic Table. G H E F Which statements about elements E, F, G and H are correct? 1 E has a higher density than F. 2 E has a higher melting point than F. 3 G has a darker colour than H. 4 G has a lower melting point than H. A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: D

This question in 0971/22 May/June 2021

24 When aqueous iodine is added to a solution of vanadium ions, V2+, the V2+ ions each lose one electron. Which property of transition elements is shown by this reaction? A Transition elements have variable oxidation states. B Transition elements form a stable 1+ ion. C Transition elements are oxidising agents. D Transition elements can act as catalysts.

1 marks

Answer: A

This question in 0971/22 May/June 2021

23 Which row describes properties of transition elements? property 1 property 2 property 3 A coloured compounds high density variable oxidation states B high density high melting point one oxidation state C high melting point coloured compounds one oxidation state D low melting point high density variable oxidation states

1 marks

Answer: A

This question in 0971/22 Oct/Nov 2021

22 Element M forms both M+ and M2+ ions. In which part of the Periodic Table is M placed? A Group I B Group II C Group III D transition elements

1 marks

Answer: D

This question in 0971/21 May/June 2022

23 Which elements have both a high melting point and variable oxidation states? A alkali metals B transition elements C halogens D noble gases

1 marks

Answer: B

This question in 0971/22 May/June 2022

23 Part of the Periodic Table is shown. Which element has a high density, a high melting point and forms a brown oxide? A D B C

1 marks

Answer: B

This question in 0971/22 Oct/Nov 2022

22 Which statement describes transition elements? A They have high densities and high melting points. B They have high densities and low melting points. C They have low densities and high melting points. D They have low densities and low melting points.

1 marks

Answer: A

This question in 0971/21 May/June 2023

22 Which row describes the properties of a transition element? melting forms coloured density point compounds A high low no B high high yes C low low no D low low yes

1 marks

Answer: B

This question in 0971/22 May/June 2023

24 Which pair of compounds shows that transition elements have variable oxidation states? A Cr2O3 and CrBr3 B CuSO4 and CuCl 2 C Fe2O3 and FeCl 2 D NiO and NiCl 2

1 marks

Answer: C

This question in 0971/22 Oct/Nov 2023

29 Some information about four elements, P, Q, R and S, is shown. melting point density colour of in°C in g/cm3 chloride P 1247 7.43 pink Q 1410 2.33 white R 1910 6.11 purple S 115 2.07 red Which elements are transition elements? A P and R B P and S C Q and R D R and S

1 marks

Answer: A

This question in 0971/21 May/June 2024

22 Which statements about transition elements are correct? 1 They have a low density. 2 They form ions with variable oxidation numbers. 3 They have a high melting point. 4 They form only colourless compounds. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4

1 marks

Answer: C

This question in 0971/22 May/June 2024

22 Which row shows the properties of a transition element? colour electrical catalyst of oxide conductivity A yes red good B yes green poor C no yellow good D no white poor

1 marks

Answer: A

This question in 0971/22 Oct/Nov 2024