Advertisements
Advertisements
प्रश्न
Although metals form basic oxides, which of the following metals form an amphoteric oxide?
पर्याय
Na
Ca
Al
Cu
Advertisements
उत्तर
Al
Explanation -
Out of all the given options, aluminium forms an amphoteric oxide Al2O3, which can both act as an acid or a base.
APPEARS IN
संबंधित प्रश्न
What are covalent compounds?
Why covalent compounds are different from ionic compounds?
List three characteristic properties of covalent compounds.
What would be the electron dot structure of carbon dioxide which has the formula CO2?
One of the following is not an allotrope of carbon. This is:
(a) diamond
(b) graphite
(c) cumene
(d) buckministerfullerene
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is:
(a) fifty
(b) sixty
(c) seventy
(d) ninety
What are the conditions necessary for the formation of covalent molecules?
Complete the following:
When the nuclei of two different reacting atoms are of ______ mass, then a bond so formed is called ______ covalent bond. (equal, unequal, polar, non-polar)
The carbon compound is used in daily life is ______.
Give examples for the following:
Two liquid non polar compounds.
Compound X consists of molecules.
Choose the letter corresponding to the correct answer from the options A, B, C and D given below:
The type of bonding in X will be ______.
Draw the electron dot diagram and structure of nitrogen molecule.
Generally, the melting and boiling point of carbon compounds are found to be less than _______ °C.
Number of valence electrons in a carbon atom is _______.
Write an Explanation.
Alkene
Write scientific reason.
Benzene compounds are called aromatic compounds.
Give an example for each of the following statement.
A compound in which three covalent bonds are formed.
Which of the following is the purest form of carbon?
What is a covalent bond?
