Advertisements
Advertisements
प्रश्न
Draw the electron-dot structure of NH3 and state the type of bonding.
Advertisements
उत्तर
The electron-dot structure of NH3 is:

In NH3, each hydrogen atom shares its one electron with the nitrogen atom to form a covalent bond.
APPEARS IN
संबंधित प्रश्न
Why covalent compounds are different from ionic compounds?
State the reason why carbon can neither form C4+ cations nor C4− anions but forms covalent compounds.
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?
How will you find out which of the water soluble compound A or B is ionic?
What type of bonding would you expect between Hydrogen and Chlorine?
Draw the electron-dot structure of HCl compound and state the type of bonding.
What is diamond? Of what substance is diamond made?
State any two uses of graphite.
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
The pencil leads are made of mainly:
(a) lithium
(b) charcoal
(c) lead
(d) graphite
Explain why Carbon tetrachloride does not dissolve in water.
Fill in the blank with correct word from the bracket.
Melting and boiling points of covalent compounds are generally ______ (low, high).
Compare the compounds carbon tetrachloride and sodium chloride with regard to solubility in water and electrical conductivity.
The particles present in strong electrolytes are
State the type of bonding in the following molecule.
Water
Your body is made up of carbon.
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
| \[\begin{array}{cc} \phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \phantom{..}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C- C- H}\\ \phantom{.}|\phantom{....}|\phantom{....}|\\ \ce{H - C - H}\\ |\\\ce{H}\end{array}\] |
An element A is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in air. It reacts vigorously with water. Identify the element from the following
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.
______ is an example of a covalent compound having a high melting point.
