Advertisements
Advertisements
प्रश्न
One of the following is not a neutral oxide. This is:
(a) CO
(b) H2O
(c) N2O
(d) Na2O
Advertisements
उत्तर
(d) Na2O
Because Na2O is a metal oxide that is basic in nature.
APPEARS IN
संबंधित प्रश्न
_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Differentiate between metal and non-metal on the basis of their chemical properties.
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.
Complete and balance the following equation:
Na + O2 →
Fill in the following blank with suitable word:
The white powder formed when magnesium ribbon burns in oxygen is of ....................
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
How do metals react with hydrogen? Explain with an example.
Can we keep sodium immersed under water? Why?
What is the action of water on aluminium ? Write equation of the chemical reaction involved.
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
A basic oxide will be formed by the element:
(a) K
(b) S
(c) P
(d) Kr
In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?
What are noble gases
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
Write the chemical equation for the following reaction:
Manganese dioxide is heated with aluminum powder.
Which of the following property is not responsible for copper to be used as electrical conduction wires?
