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प्रश्न
Choose the correct answer from the options given below:
The metal is a liquid at room temperature.
पर्याय
Potassium
Zinc
Gold
Mercury
उत्तर
Mercury
APPEARS IN
संबंधित प्रश्न
A zinc ore gave CO2 on treatment with a dilute acid. Identify the ore and write its chemical formula.
How is zinc extracted from its carbonate or (calamine)? Explain with equations.
Name one ore of copper (other than cuprite). Which compound of copper is present in this ore? Also, write its chemical formula.
Give the name of one ore of iron. Which iron compound is present in this ore? Write its chemical formula.
Zinc blende ore can be converted into zinc oxide by the process of:
(a) roasting
(b) hydrogenation
(c) chlorination
(d) calcination
An element A which is a part of common salt and kept under kerosene reacts with another element B of atomic number 17 to give a product C. When an aqueous solution of product C is electrolysed then a compound D is formed and two gases are liberated.
(a) What are A and B?
(b) Identify C and D.
(c) What will be the action of C on litmus solution? Why?
(d) Write formula of the compound formed when element B reacts with an element E having atomic number 5.
Give reasons, why aluminum is used in:
wrapping chocolates
Name the following:
The mixture of materials fed into a furnace to extract a metal.
_______ is the least reactive metal.
Zinc sulphide : Roasting : : zinc carbonate : _______
