Advertisements
Advertisements
प्रश्न
Which inert gas does the H atom in HCl resemble in electron arrangement?
Advertisements
उत्तर
The H atom in HCl resembles helium gas in its electron arrangement by sharing one electron with the chlorine atom to get two electrons in its outermost shell.
APPEARS IN
संबंधित प्रश्न
Give appropriate scientific reasons for Carbon tetrachloride does not conduct electricity.
Buckminsterfullerene is 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?
Give one example of a molecule containing a single covalent bond.
What type of chemical bonds are formed by carbon? Why?
Explain the formation of a chlorine molecule on the basis of electronic theory of valency.
Give two general properties of ionic compounds and two those of covalent compounds.
Which inert gas does the Cl atom in HCl resemble in electron arrangement?
Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)
The solution of one of the following compounds will not conduct electricity. This compounds is:
(a) NaCl
(b) CCl4
(c) MgCl2
(d) CaCl2
Observe the straight chain hydrocarbons given below and answer the following
questions :
i) Which of the straight chain compounds from A and B is saturated and unsaturated straight chains?
ii) Name these straight chains.
iii) Write their chemical formulae and number of – CH2 - units.
Explain the following:
Polar covalent compounds are good conductors of electricity.
The following table shows the electronic configuration of the elements W, X, Y, Z:
|
Element |
W |
X |
Y |
Z |
|
Electronic |
2,8,1 |
2,8,7 |
2,5 |
1 |
Answer the following questions based on the table above:
What type of bond is formed between Y and Z.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If B is a diatomic gas, write the equation for the direct combination of A and B to form a compound.
Answer the following question.
What is methane? Draw its electron dot structure. Name the type of bonds formed in this compound. Why are such compounds:
(i) poor conductors of electricity? and
(ii) have low melting and boiling points? What happens when this compound burns in oxygen?
The bond between two oxygen atoms is _______ bond.
Write scientific reason.
Carbon has the property of forming many compounds.
Write scientific reason.
Benzene compounds are called aromatic compounds.
Write a short note.
Aromatic hydrocarbons
______ is an example of a covalent compound having a high melting point.
