Please select a subject first
Advertisements
Advertisements
How many Faradays of electricity is required to produce 4.8 g of Mg at cathode in the electrolysis of molten MgCl2?
(Molar mass of Mg = 24 g/mol)
Concept: undefined >> undefined
How many electrons are involved in the reaction, when 0.40 F of electricity is passed through an electrolytic solution?
Concept: undefined >> undefined
Advertisements
Number of electrons involved in the reaction, when 1 Faraday of electricity is passed through an electrolytic solution is ______.
Concept: undefined >> undefined
A first order reaction has rate constant 1 × 10−2 s−1. What time will, it take for 20 g or reactant to reduce to 5 g?
Concept: undefined >> undefined
A first order reaction is 25% completed in 40 minutes. What is the rate constant k tor the reaction?
Concept: undefined >> undefined
Which of the following salt contain interstitial water molecule in it?
Concept: undefined >> undefined
Which among the following ore is concentrated by froth floatation process?
Concept: undefined >> undefined
A reaction that is of the first order with respect to reactant A has a rate constant 6 min−1. If we start with [A]0 = 0.5 mol dm−3, when would [A] reach the value 0.05 mol dm−3?
Concept: undefined >> undefined
Which ion has the highest value of theoretical magnetic moment?
Concept: undefined >> undefined
The time of completion of 90% of a first order reaction is approximately ____________.
Concept: undefined >> undefined
Three moles of an ideal gas are expanded isothermally from a volume of 300 cm3 to 2.5 L at 300 K against a pressure of 1.9 atm. The work done in joules is ____________.
Concept: undefined >> undefined
IUPAC name of ethylenediamine is ____________.
Concept: undefined >> undefined
Two electrolytic cells are connected in series containing CuSO4 solution and molten AlCl3. If in electrolysis 0.4 moles of 'Cu' are deposited on cathode of first cell. The number of moles of 'Al' deposited on cathode of the second cell is _______.
Concept: undefined >> undefined
When electrolysis of molten NaCl and aqueous NaCl are carried out separately, the product formed at cathode are ____________ and ___________ respectively.
Concept: undefined >> undefined
Which among the following reaction is an example of a zero order reaction?
Concept: undefined >> undefined
In bcc unit cell, the edge length (a) and radius of sphere (r) are related to each other by equation:
Concept: undefined >> undefined
Which hydride among the following is the strongest reducing agent?
Concept: undefined >> undefined
The rate constant of a reaction has same units as the rate of reaction. The reaction is of ____________.
Concept: undefined >> undefined
In which one of the following conversions, phosphorus pentachloride is used as a reagent?
Concept: undefined >> undefined
Nanorings and nanotubes are examples of ____________ nanostructures respectively.
Concept: undefined >> undefined
