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प्रश्न
Write the name.
The reagent which dissolves noble metals.
उत्तर
The reagent which dissolves noble metals- Aqua regia
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संबंधित प्रश्न
Name the gas that is produced in the given case:
The reaction of ethanol and sodium.
Name two non-metals which are both brittle and non-ductile.
State one use of Hydrogen.
Name the metal which is used in making thermometers.
Name a metal which is so soft that it can be cut with a knife.
Name a non-metal having lustre (shining surface).
Which of the following metal exists in the liquid state?
(a) Na
(b) Ag
(c) Cr
(d) Hg
Which of the following non-metal is a liquid?
(a) carbon
(b) sulphur
(c) bromine
(d) iodine
Name the metals present in the following alloys
Duralumin
Name a liquid non-metal.
Name:
a metal with dull appearance
`Na _____ → Na^+`
Explain how the activity series accounts for the following:
occurrence of metals
Name two metalloids.
How are metals like sodium, potassium, and calcium obtained? Give equations.
With reference to the physical properties of metals and non-metals, state the following exception.
A non-metal which has low tensile strength
Select the appropriate option for the following statement:
The element which is a noble metal.
State whether the statement given below is true or false. If false write the correct statement.
Lead pencils contain lead.
The sound of one metal colliding with another makes a noise, this property is called as _______.
Diamond is a hard substance.
