EASY
Earn 100

Aqua regia traces its origin from ____________ language. 

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Important Questions on Metals and Non-Metals

EASY
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
The reducing ability of the metals K, Au, Zn and Pb follows the order
EASY
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
The metal that gives hydrogen gas upon treatment with both the acid as well as the base is
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Describe the reaction of potassium with water. Write the equation of the reaction involved.
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Why is sodium kept immersed in kerosene oil?
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Name two metals which cannot displace hydrogen from dilute acids.
EASY
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
What is aqua-regia? Name two special metals which are insoluble in common reagents but dissolve in aqua-regia.
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
What is the action of water on magnesium? Write equations of the chemical reactions involved.
EASY
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Which is correct molar ratio of HNO3 and HCl in aqua regia?
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Name two metals which can displace hydrogen from dilute acids
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
With the help of examples describe how metal oxides differ from non-metal oxides.
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Name two metals which form amphoteric oxides.
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Why does aluminium not react with water under ordinary conditions?
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
How would you show that silver is chemically less reactive than copper?
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.
HARD
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
EASY
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Which property of an element is always a natural number?
MEDIUM
Chemistry>Chemistry - Xth Grade>Metals and Non-Metals>Chemical Properties of Metals
Mendeleev predicted the existence of certain elements not known at that time and named two of them as eka-silicon and eka-aluminium.
(a) Name the elements which have taken the place of these elements.
(b) Mention the group and the period of these elements in the modern periodic table.
(c) How many valence electrons are present in each one of them?