MEDIUM
Earn 100

How do metals react with water?

Important Questions on Sorting Materials into Groups

EASY
Zn(s) + CuSO4(aq)   ZnSO4(aq) + Cu(s). What type of chemical reaction is shown in the above equation?
EASY
Which of the following metal in combination with oxygen would yield basic metal oxide?
MEDIUM

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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MEDIUM
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
What is the gas liberated when the metals react with dilute acids?
HARD
Differentiate between metals and non-metals on the basis of their chemical properties.
EASY
A basic oxide will be formed by the element-
HARD
How do metals react with hydrogen? Explain with an example.
MEDIUM
An element is soft and can be cut with a knife. It is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be :
MEDIUM
An acidic oxide is produced by the element:
MEDIUM
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place.
MEDIUM
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

What is your observation in the following case:

Burning of magnesium in air.

EASY
The elements whose oxides can turn litmus solution blue are:
MEDIUM
The element which has an intermediate property between a metal and non-metal is known as?
EASY
The elements which behave like metals and non-metals are called _____. (transition metals / semi-metals)
MEDIUM
Choose the acidic oxides, basic oxides and neutral oxides from the following:
Na2O; CO2; CO; SO2; MgO; N2O; H2O.
MEDIUM
What type of oxides are formed when non-metals react with oxygen? Explain with an example.