Test-MCQ Class 10-NCERT -Science-Chapter 3-Test-1 Chapter 3: Metals and Non-Metals Multiple Choice Questions No of Questions : 10 Marks: 11 Please enter your email: 1. Which of the following property is generally not shown by metals? Sonorous in nature Dullness Ductility Electrical conduction 2. What is the colour of aqueous solution of CuSO4 and FeSO4 as observed in the laboratory? CuSO4 – blue; FeSO4 – dark green CuSO4 – green; FeSO4 – blue CuSO4 – blue; FeSO4 – light green CuSO4 – green; FeSO4 – colourless 3. A student took four test tubes I, II, III and IV containing aluminium sulphate, copper sulphate, ferrous sulphate and zinc sulphate solutions respectively. He placed an iron strip in each of them. In which test tube, he found a brown deposit? II I IV III 4. Aluminium sulphate and copper sulphate solutions were taken in two test tubes I and II respectively. A few pieces of iron filings were then added to both the solutions. The four students A, B, C and D recorded their observations in the form of a table as given below: Student Al2(SO4)3 solution (I) CuSO4 solution (II) A Colourless solution -> Light green Blue colour is retained B Colourless solution -> No change Blue colour solution -> Green C Colourless solution -> Light blue Blue colour solution -> Green D No change in colour Blue colour of solution fades A C D B 5. Aqueous solutions of zinc sulphate and iron sulphate were taken in test tubes I and II by four students A, B, C and D. Metal pieces of iron and zinc were dropped in the two solutions and observations made after several hours were recorded in the form of table as given below: B A C D 6. 2 mL each of cone. HCl, cone. HNO3 and a mixture of cone. HCl and cone. HNO3 in the ratio of 3 : 1 were taken in test tubes labelled as A, B and C. A small piece of metal was put in each test tube. No change occurred in test tubes A’and B but the metal got dissolved in test tube C. The metal could be —– Au Al Cu Pt 7. When an aluminium strip is kept Green solution of FeSO4 slowly turns colourless No change in colour of FeSO4 Green solution of FeSO4rapidly turns brown Green solution of FeSO4 slowly turns brown 8. Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same? (i) Good thermal conductivity (ii) Good electrical conductivity (iii) Ductility (iv) High melting point (i) and (iii) (i) and (ii) (ii) and (iii) (i) and (iv) 9. If copper is kept open in air, it slowly loses its shining brown surface and gains a green coating. It is due to the formation of CuCO3 CuSO4 CU(NO3)2 CuO 10. The ability of metals to be drawn into thin wire is known as malleability sonorousity ductility conductivity Loading … Question 1 of 10
