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pOH of 0.002 M HNO3 is : (a) 11 + log2 pOH of 0.002 M HNO3 is : (a) 11 + log2 November 12, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , N Awasthi Physical Chemistry ,

A solution has a pH=9. It is 1000 times more basic than the original solution. What was the pH of the original solution? A solution has a pH=9. It is 1000 times more basic than the original solution. What was the pH of the original solution? November 12, 2020 Category: Chapter 6 - Ionic Equilibrium [...]

A metal which is refined by poling is (a) Sodium (b) Blister copper (c) Zinc (d) Silver A metal which is refined by poling is (a) Sodium (b) Blister copper (c) Zinc (d) Silver November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The pH of a solution is 5. to this solution acid was added so that its pH value becomes 2.0. The increase in H+ concentration is : The pH of a solution is 5. to this solution acid was added so that its pH value becomes 2.0. The increase in H+ concentration is : November [...]

LetC be the capacitance of a capacitor discharging through a resistor R. Suppose t1 is the time taken for the energy stored in the capacitor to reduce to half its initial value and t2 is the time taken for the charge to reduce to one-fourth its initial value. Then the ratio t1/t2 will be The [...]

The hydroxide ion concentration of a wine is 8×10^−11 M. What is the pH of the wine? The hydroxide ion concentration of a wine is 8×10^−11 M. What is the pH of the wine? November 12, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , N Awasthi Physical Chemistry ,

In electrolytic refining, the impure metal is used to make (a) Cathode (b) Anode (c) Electrolytic bath (d) None of these In electrolytic refining the impure metal is used to make (a) Cathode (b) Anode (c) Electrolytic bath (d) None of these November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

A source of sound of sound is approaching an observer with speed of 30 ms^−1 and the observer is approaching the source with a speed of 60 ms^−1 . Then the fractional change in the frequency of sound (speed of sound in air = 330 ms^−1) is A car moving with velocity 50 m s [...]

At what value of the resistance in the circuit shown in the figure will the total resistance between points A and B be independent of the number of cells? If R = ( root 3 +1)Ω, then the value of x will be ′′ ……”Ω. At what value of the resistance in the circuit shown [...]

Silver obtained from argentiferrous lead containing lead impurity is purified by (a) Distillation (b) Froth floatation (c) Cupellation Silver obtained from argentiferrous lead containing lead impurity is purified by (a) Distillation (b) Froth floatation (c) Cupellation November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,