Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c7e273b230584979aeb.JPG' /> Samples of four metals A, B, C and D were taken and added to the different solution one by one. The results obtained have been tabulated above. Use the given table to answer the following questions about metals A, B, C and D. Arrange the metals in decreasing order of reactivity.

Question 2 :
Give an example of a metal which can be easily cut with a knife.

Question 3 :
Which of the following methods is suitable for preventing an iron frying pan from rusting?

Question 5 :
An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that

Question 6 :
An element reacts with conductivity of metals oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be

Question 8 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19c7c273b230584979ae9.JPG' /> Samples of four metals A, B, C and D were taken and added to the different solution one by one. The results obtained have been tabulated above. Use the given table to answer the following questions about metals A, B, C and D. Which is the most reactive metal?

Question 9 :
Give an example of a metal which is a good conductor of heat.

Question 10 :
Which of the following methods is suitable for preventing an iron frying pan from rusting?

Question 11 :
Food cans are coated with tin and not with zinc because

Question 12 :
Which one of the following metals is the most reactive and stored in kerosene?

Question 13 :
An element reacts with conductivity of metals oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be

Question 14 :
Give an example of a metal which is a poor conductor of heat.

Question 15 :
Give an example of a metal which can be easily cut with a knife.