Chemical Bonding

Read more about the article A compound has a formula = ‘H2Y’. Y denotes a non-­metal. State the following: </br>1. The electronic configuration of Y. </br>2. The valency of Y. </br>3. The bonding present in ‘H2Y’ </br>4. The bonding present in the compound formed between potassium (19K39) and ‘Y’ </br>5. The formula of the compound formed between calcium (20Ca40) and Y.

A compound has a formula = ‘H2Y’. Y denotes a non-­metal. State the following:
1. The electronic configuration of Y.
2. The valency of Y.
3. The bonding present in ‘H2Y’
4. The bonding present in the compound formed between potassium (19K39) and ‘Y’
5. The formula of the compound formed between calcium (20Ca40) and Y.

The element Y needs 2 electrons to complete it's octet, so it will have 6 electrons in the outer most shell. Hence, will have 2, 6 as the electronic configuration. It is…

Read more about the article Electronic configuration of the following elements are given: </br>1. Sodium — Na = 2, 8, 1 </br>2. Hydrogen — H = 1 </br>3. Carbon — C = 2, 4 </br>4. Chlorine — Cl = 2, 8, 7 </br>5. Lithium — Li = 2,1 </br>State which of the compounds given below: </br>(a) have high/low boiling points, </br>(b) are soluble/insoluble in organic solvents. </br>A : Hydrogen chloride </br>B : Sodium chloride </br>C : Sodium hydride </br>D : Lithium chloride </br>E : Carbon tetrachloride

Electronic configuration of the following elements are given:
1. Sodium — Na = 2, 8, 1
2. Hydrogen — H = 1
3. Carbon — C = 2, 4
4. Chlorine — Cl = 2, 8, 7
5. Lithium — Li = 2,1
State which of the compounds given below:
(a) have high/low boiling points,
(b) are soluble/insoluble in organic solvents.
A : Hydrogen chloride
B : Sodium chloride
C : Sodium hydride
D : Lithium chloride
E : Carbon tetrachloride

(a) Compounds having high/low boiling points are — A : Hydrogen chloride → low boiling point B : Sodium chloride → high boiling point C : Sodium hydride → high…

Read more about the article Fill in the blanks with the correct word from the brackets: </br>(i) The bond between two elements in group 17[VIIA] of the periodic table is likely to be ____ [ionic/covalent]. </br>(ii) In the reaction of Cl2 + 2KI ⟶ 2KCl + I2 the conversion of 2I to I2 is deemed as ____ [oxidation/reduction]. </br>(iii) The covalent molecule containing three single covalent bonds is ____ [water/methane/ammonia]. </br>(iv) The molecule of water combines with a ____ [hydrogen atom/proton/hydrogen molecule] to form a hydronium ion. </br>(v) For formation of an electrovalent bond between elements ‘X’ and ‘Y’ which are a metal and non-metal respectively, X should have a ____ [high/low] ionization potential and ‘Y’ a ____ [high/low] electron affinity.

Fill in the blanks with the correct word from the brackets:
(i) The bond between two elements in group 17[VIIA] of the periodic table is likely to be ____ [ionic/covalent].
(ii) In the reaction of Cl2 + 2KI ⟶ 2KCl + I2 the conversion of 2I to I2 is deemed as ____ [oxidation/reduction].
(iii) The covalent molecule containing three single covalent bonds is ____ [water/methane/ammonia].
(iv) The molecule of water combines with a ____ [hydrogen atom/proton/hydrogen molecule] to form a hydronium ion.
(v) For formation of an electrovalent bond between elements ‘X’ and ‘Y’ which are a metal and non-metal respectively, X should have a ____ [high/low] ionization potential and ‘Y’ a ____ [high/low] electron affinity.

The bond between two elements in group 17[VIIA] of the periodic table is likely to be covalent. In the reaction of Cl2 + 2KI ⟶ 2KCl + I2 the conversion of 2I to…

Read more about the article With reference to a molecule of water, fill in the blanks with the correct word. [at. no. of H = 1, O = 8] </br>Water is a ____ [non-polar/polar] covalent molecule in which the atom of ____ [hydrogen/oxygen] attracts electrons more strongly towards itself. The water molecule shows the presence of ____ [double / one single / two single] covalent bond/s and ____ [one/two] lone pair of electrons present in the ____ [hydrogen/oxygen] atom.

With reference to a molecule of water, fill in the blanks with the correct word. [at. no. of H = 1, O = 8]
Water is a ____ [non-polar/polar] covalent molecule in which the atom of ____ [hydrogen/oxygen] attracts electrons more strongly towards itself. The water molecule shows the presence of ____ [double / one single / two single] covalent bond/s and ____ [one/two] lone pair of electrons present in the ____ [hydrogen/oxygen] atom.

Water is a polar covalent molecule in which the atom of oxygen attracts electrons more strongly towards itself. The water molecule shows the presence of two single covalent bond/s and two lone pair of electrons present in the oxygen atom.