Advertisements
Advertisements
प्रश्न
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If the compound formed between A and B is melted and an electric current is passed through the molten compound, the element A will be obtained at the ______ and B at the ______ of the electrolytic cell.
Advertisements
उत्तर
If the compound formed between A and B is melted and an electric current is passed through the molten compound, then element A will be obtained at the cathode and B at the anode of the electrolytic cell.
संबंधित प्रश्न
What are covalent compounds?
Choose the most appropriate answer from the following list of oxides which fit the description.
A covalent oxide of a metalloid.
Buckminsterfullerene is a spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
- How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
- How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene?
Why does carbon form compounds mainly by covalent bonding?
Explain why, diamond can be used in rock drilling equipment but graphite cannot.
A hydrocarbon having one double bond has 100 carbon atoms in its molecule. The number of hydrogen atoms in its molecule will be ______.
An element E exists in three allotropic forms A, B and C. In allotrope A, the atoms of element E are joined to form spherical molecules. In allotrope B, each atom of element E is surrounded by three other E atoms to form a sheet like structure. În allotrope C, each atom of element E is surrounded by four other E atoms to form a rigid structure.
(a) Name the element E.
(b) What is allotrope A.
(c) What is allotrope B?
(d) What is allotrope C?
(e) Which allotrope is used in making jewellery?
(f) Which allotrope is used in making anode of a dry cell?
Give two example in following case:
Gaseous polar covalent compound.
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
Considering MgCl2 as ionic compound and CH4 as covalent compound give any two differences between these two compounds.
