📚NCERT Questions — CBSE11
591 solved questions with detailed explanations
In redox titrations, why does permanganate ion (MnO4-) act as a self-indicator?
Classical physics failed to explain black-body radiation because it predicted that a black body should emit radiation at:
In the reaction 2 Na(s) + Cl2(g) → 2 NaCl(s), sodium acts as a:
Which of the following properties are considered state variables or state functions?
In the Daniell cell, if electrons flow from the zinc electrode to the copper electrode, what is the direction of conventional current flow?
The standard enthalpy of reaction (Δ_r H°) in the gas phase is related to bond enthalpies of reactants and products by which expression?
Which ancient Indian text mentions ingredients like barks of plants, stem, flowers, leaves, woods, cereals, fruits and sugarcane for making 'Asavas' (liquors)?
Which of the following is a characteristic of a combination redox reaction?
Which of the following is an example of an expanded octet for the central atom?
According to Dalton's Atomic Theory, what happens to atoms during a chemical reaction?