Advertisements
Advertisements
प्रश्न
Give examples for the following:
Two solid covalent compounds.
Advertisements
उत्तर
Urea, Glucose.
APPEARS IN
संबंधित प्रश्न
What would be the electron-dot structure of carbon dioxide which has the formula CO2?
Fill in the blank in the following sentence:
The number of single covalent bonds in C2H2 molecule are ...........
What type of chemical bond is present in chlorine molecule? Explain your answer.
The number of isomers formed by the hydrocarbon with molecular formula C5H12 is:
(a) 2
(b) 5
(c) 3
(d) 4
A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.
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 ______.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
Write equations to show how A and B form ions.
Considering MgCl2 as ionic compound and CH4 as covalent compound give any two differences between these two compounds.
The table shows the electronic structures of four elements.
| Element | Electronic Structure |
| P | 2, 6 |
| Q | 2, 8, 1 |
| R | 2, 8, 7 |
| S | 2, 8, 8 |
- Identify which element(s) will form covalent bonds with carbon.
- “Carbon reacts with an element in the above table to form several compounds.” Give suitable reason.
In covalent compounds, the bond is formed due to ______ of electrons.
