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प्रश्न
Name a metal that is brittle
उत्तर
Zinc
APPEARS IN
संबंधित प्रश्न
Name two metals which are both malleable and ductile.
"Is malleable and ductile". This best describes:
(a) a metal
(b) a compound
(c) a non-metal
(d) a solution
The electronic configurations of three elements A, B and C are as follows:
| A | 2, 8, 1 |
| B | 2, 8, 7 |
| C | 2, 4 |
(a) Which of these element is a metal?
(b) Which of these elements are non-metals?
(c) Which two elements will combine to form an ionic bond?
(d) Which two elements will combine to form a covalent bond?
(e) Which element will form an anion of valency 1?
Name a metal as precious as gold
Tick (√) the most appropriate answer.
Copper metal is used in :
Tick (√) the most appropriate answer.
Sodium amalgam is prepared by dissolving sodium in :
State two important uses of following non-metals
Uses of nitrogen
State the composition and two uses of given alloy:
Brass
Name:
a metal with low melting and boiling points
Name:
a non- metal used in alloys
Name:
a non metal which is lustrous
Name:
two metallic oxides which are acidic
Name:
the most abundant metal and the most abundant non=metal
Explain how the activity series accounts for each of the following:
reaction with water
With reference to the physical properties of metals and non-metals, state the following exception.
A non-metal which has low tensile strength
Give a reason why – properties of metals are related to their activity or reactivity series of metals. Explain the same with reference to potassium and iron in the series.
Select the appropriate option for the following statement:
The element which shows properties of both metals and non-metals.
_______ is good conductor of heat but bad conductor of electricity.
Compounds obtained from non–living sources are called ______.
