Question 2 :
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 3 :
Which one of the following metals is the most reactive and stored in kerosene?
Question 5 :
An element reacts with oxygen and give slaked lime. The element is
Question 6 :
Give an example of a metal which is a poor conductor of heat.
Question 8 :
An element reacts with oxygen and give slaked lime. The element is
Question 9 :
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 11 :
Which one of the following metals is the most reactive and stored in kerosene?
Question 12 :
The earthly or undesired materials associated with an ore are called
Question 13 :
Food cans are coated with tin and not with zinc because
Question 14 :
Give an example of a metal which is a poor conductor of heat.
Question 15 :
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Question 16 :
Give an example of a metal which is a good conductor of heat.
Question 17 :
Give an example of a metal which is a liquid at room temperature.
Question 18 :
Give an example of a metal which is a good conductor of heat.
Question 19 :
The earthly or undesired materials associated with an ore are called
Question 20 :
Give an example of a metal which can be easily cut with a knife.
Question 21 :
Give an example of a metal which is a liquid at room temperature.
Question 23 :
An aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change observed is that
Question 24 :
Which of the following methods is suitable for preventing an iron frying pan from rusting?