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The change in colour of the dipped portion of the iron nail in copper sulphate solution is because of the deposition of _____.

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Important Questions on Sorting Materials into Groups

EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Which of the following metal in combination with oxygen would yield basic metal oxide?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Why do we apply paint on iron articles?
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Why do we apply paint on iron articles? 
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals

Write a chemical equation for the reaction taking place in the test tube. How does the colour of the solution change? What is the change in colour of iron nails? 

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EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Zn(s) + CuSO4(aq) →  ZnSO4(aq) + Cu(s). What type of chemical reaction is shown in the above equation?
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Differentiate between metals and non-metals on the basis of their chemical properties.
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
What is the gas liberated when the metals react with dilute acids?
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be-
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
 State two ways to prevent the rusting of iron.
HARD
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals

Copper vessels are coated with _____ to prevent corrosion.

EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Choose the correct option from the following:
(Painting, Water, Salt)
_____ prevents rusting of iron.
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals

Fill in the blanks by choosing the correct word from the list given below:

List: Galvanisation, physical, calcium carbonate, new, calcium hydroxide, energy, substance, saturated, sodium carbonate, moist.

Rusting of iron can be prevented by oiling and _____.
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
_____ is an alloy of iron. (brass / stainless steel)
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
The process of depositing a thin layer of zinc on iron objects is called _____. (galvanisation/alloying)
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Stainless steel is an alloy of _____. (copper / iron)
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Coating of metal coins is a very common example of the _____ technique.
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
Rusting is an example of corrosion of _____. (Aluminium/ Iron)
MEDIUM
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
The process of depositing zinc on iron to prevent rusting is called _____.
 
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals
A process in which iron articles are coated with a layer of molten zinc is called _____.
EASY
Science>Chemistry>Sorting Materials into Groups>Chemical Properties of Metals

Electroplating of _____ is done on objects like water taps and cycle bells to give them a shiny appearance.

(Nickel/Chromium)