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प्रश्न
Complete the statement given below, by filling in the blank with the correct word:
A metal which floats on water _____
उत्तर
A metal which floats on water potassium.
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संबंधित प्रश्न
Which property of copper and aluminium makes them suitable for making cooking utensils and boilers?
Name one non-metal which is stored under water.
Name the non-metal which is used to convert vegetable oil into vegetable ghee (solid fat).
"Is malleable and ductile". This best describes:
(a) a metal
(b) a compound
(c) a non-metal
(d) a solution
Name a metal that is most malleable
Name a metal that is brittle
Name a metal used in making electric cables
Name a non-metal that is used to kill germs in water
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is .........................
The noble gas used in advertising signboards is
Name one metal which is a liquid at room temperature
State two important uses of following non-metals
Uses of nitrogen
State two important uses of following non-metal
Uses of oxygen
Name:
the most abundant metal and the most abundant non=metal
The table below compares some properties of metals and non-metals. Write down the missing
statements (i) to (iv) :
| Metals | Non-metals |
| (i) ………………….. | Poor conductors of heat |
| (ii) Malleable | …………………… |
| (iii) Form positive ions | …………………… |
| (iv) ………………… | Form acidic oxides |
How many valence electrons are present in:
(i) metals and
Explain the term Gangue .
Give reason for the following:
Rusting reduces the structural strength of iron.
Brass : Aluminium and zinc : : Bronze : ______
The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
