18 public questions tagged with this topic.
The carbon in CH₃C≡N triple-bonded to nitrogen has two sigma bonds (C-C and C≡N) and is sp hybridized, resulting in a linear shape.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Purification Methods - Crystallization Distillation Chromatography
When both nitrogen and sulphur are present, they form NaSCN, which reacts with Fe³⁺ to give a blood-red color (Fe(SCN)₃).
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Isomerism - Stereoisomerism - Geometrical and Optical Isomerism
In 3Zn + 2NO → 3ZnO + N₂, NO (N: +2) is reduced to N₂ (N: 0), oxidizing Zn (0 to +2).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Oxidizing and Reducing Agents and Strength
N (0 in N₂) becomes -3 in NH₃. Change = -3 - 0 = -3.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Classical and Electronic Concept of Redox and Oxidation Number
Let N = x. O = -2. Equation: 2x + (-2) = 0, 2x = 2, x = +1.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Classical and Electronic Concept of Redox and Oxidation Number
Let N = x. H = +1. Equation: x + 3(+1) = 0, x + 3 = 0, x = -3.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Classical and Electronic Concept of Redox and Oxidation Number
N (0 in N₂) becomes -3 in NH₃. Change = -3 - 0 = -3.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Classical and Electronic Concept of Redox and Oxidation Number
Let N = x. H = +1, O = -2. Equation: +1 + x + 2(-2) = 0, 1 + x - 4 = 0, x = +3.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Balancing Redox Reactions - Oxidation Number Method and Half Reaction
Let N = x. O = -2. Equation: x + 2(-2) = 0, x - 4 = 0, x = +4.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Balancing Redox Reactions - Oxidation Number Method and Half Reaction
In N₂H₄ , each nitrogen is bonded to two hydrogens and one nitrogen, with one lone pair, requiring four sp³ hybrid orbitals.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Kossel-Lewis Approach and Octet Rule and Lewis Structures
The bond enthalpy of N₂ (triple bond) is 946 kJ/mol, reflecting its high stability due to three shared electron pairs.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Hydrogen Bonding and Resonance and Dipole Moment
Atomic radius increases down a group. Among N, P, As, and Sb (group 15), N (period 2) has the smallest radius.
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100
