An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be
- A
carbon
- B
calcium
- C
silicon
- D
iron
Similar Questions
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset but after a futile argument the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
Why is sodium kept immersed in kerosene oil ?
Why is sodium kept immersed in kerosene oil ?
Which metals do not corrode easily ?
Which metals do not corrode easily ?
Why do ionic compounds have high melting points ?
Why do ionic compounds have high melting points ?
Define the following terms.
$(i)$ Mineral $(ii)$ Ore $(iii)$ Gangue
Define the following terms.
$(i)$ Mineral $(ii)$ Ore $(iii)$ Gangue