17 public questions tagged with this topic.
The Dumas method involves heating the compound to release nitrogen gas (N₂), which is collected and measured at STP.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Qualitative and Quantitative Analysis - Lassaigne Test and Estimation
In CH₃CH₂OH, the carbon attached to oxygen has four single bonds (to O, H, and two C atoms), indicating sp³ hybridization.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Isomerism - Structural Isomerism - Chain Position Functional Metamerism
In CH₃CH=CH₂ (propene), the first carbon (CH₃) has four single bonds, indicating sp³ hybridization.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Isomerism - Structural Isomerism - Chain Position Functional Metamerism
Let I = x. F = -1. Equation: x + 7(-1) = 0, x - 7 = 0, x = +7.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
Ga (0) becomes +3 in GaCl₃, losing electrons to reduce Cl (0 to -1).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
Fe (+3 in FeCl₃) to +2 in FeCl₂ is reduced; S (-2 to 0) is oxidized.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In 2KClO₃ → 2KCl + 3O₂, Cl (+5 to -1) is reduced, and O (-2 to 0) is oxidized.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In 2Fe + 3SO₂ → Fe₂O₃ + 3S, SO₂ (S: +4 to 0) is reduced, oxidizing Fe (0 to +3).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In 2K + ZnSO₄ → K₂SO₄ + Zn, K (0 to +1) is oxidized, and Zn (+2 to 0) is reduced, with K displacing Zn.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In BrF₃, bromine has 7 valence electrons and forms 3 single bonds (6 electrons used), leaving 4 electrons as 2 lone pairs. With sp³d hybridization, the 5 electron pairs (3 bonding, 2 lone) result in a T-shaped molecular geometry.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: VSEPR Theory and Shapes of Molecules
For Z = 115: 1 (un), 1 (un), 5 (pent) → ununpentium (before its official name, Moscovium).
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100
This configuration (Z=24) corresponds to Cr, an exception due to the stability of half-filled 3d⁵, unlike Mn (3d⁵ 4s²), Fe (3d⁶ 4s²), or Co (3d⁷ 4s²).
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Electronic Configuration and Types of Elements - s p d f Blocks
