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प्रश्न
Name a metal which is lighter than water :
उत्तर
Sodium
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संबंधित प्रश्न
Name one metal and one non-metal which exist in liquid state at room temperature.
Name the non-metal which is used in the vulcanisation of rubber.
Name two non-metals which are both brittle and non-ductile.
Name two physical properties of carbon in which it's behaviour is not as expected from it's classification as non-metal.
Fill in the blank
A chemical compound that makes up the striking heads of match sticks is ______
What do you understand by the term metal?
Name:
a metal with dull appearance
Name:
a metal whose oxide is reduced only by carbon
Give a short account of heating effect on metal carbonates based on the activity series ?
Distinguish between an ore and a metallic compound.
Identify the odd term.
Write scientific reason.
The stainless steel vessels in Kitchen have copper coating on the bottom.
From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:
- Ductile
- Conduct electricity
- Brittle
- Acidic Oxides
- Basic Oxides
- Discharged at anode
- Discharged at cathode
- Ionic chlorides
- Covalent chlorides
- Reaction with dilute sulphuric acid yields hydrogen
- 1, 2 or 3 valence electrons
- 5, 6, 7 valence electrons
(Write the five letters corresponding to the correct characteristics).
With reference to the physical properties of metals and non-metals, state the following exception.
A non-metal which has low tensile strength
Give reason for the following:
Rusting reduces the structural strength of iron.
_______ is basic oxide.
Identify who I am!
Amphoteric oxide forming metal- _______
The metal is stored in kerosene ______.
