📚NCERT Questions
1,675 solved questions with detailed explanations
What is meant by a 'dynamic equilibrium'?
Compounds that have the same constitution and sequence of covalent bonds but differ in the relative positions of their atoms or groups in space are called:
What are the primary products when carbon (in any allotropic form) burns in oxygen?
According to Table 5.4, if Δ_r H° is negative and Δ_r S° is positive, what is the spontaneity of the reaction?
Why do aqueous solutions of acids conduct electricity?
Why is methanol more dangerous than ethanol when consumed, even in small quantities?
For the reaction CCl₄(g) → C(g) + 4Cl(g), if Δ_a H°(C) = 715.0 kJ mol⁻¹ and Δ_a H°(Cl₂) = 242 kJ mol⁻¹, what is the bond enthalpy of a C-Cl bond in CCl₄(g)? (Assume Δ_vap H°(CCl₄) = 30.5 kJ mol⁻¹ and
An acid changes the colour of blue litmus to:
Bohr's model quantizes the angular momentum of an electron in a stationary state. The expression for this quantized angular momentum is:
What is the primary function of hydrochloric acid (HCl) in the human stomach?