KMnO₄ reacts with oxalic acid according to the equation :
2MnO₄ + 5C₂ O₄2-+ 16H⁺ →2MN2+ + 10CO₂ + 8H₂O Here 20 ml. of 0.1 M KMnO₄ is equivalent to ?
In which of the following complex ion, the central metal ion is in a state of sp3 d2 hybridisation?
If 0.44 g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm hg and 273oC, then the compound is
How many Cl- ions are there around Na⁺ ion in NaCl crystal?
In the following sequence of reactions, the alkene affords the compound 'B'
The compound B is
Electrolysis of dilute aqueous NaCl solution was carried out by passing 10 milli ampere current. The time required to liberate 0.01 mol of H2 gas at the cathode is (1 Faraday = 96500 C mol-1)
According to Faraday's first law of electrolysis:
m = EIt/F
m = mass of substance
E = equivalent weight of substance
I = current in amperes
t = time required
F = 96,500 Coulombs
The vapour pressure of water at 20oC is 17.5 mm Hg. If 18 g of glucose (C₆H₁₂O₆) is added to 178.2 g of water at 20oC , the vapour pressure of the resulting solution will be
Which of the following is correct about the reaction?
Arrange the carbanions,
More the number of alkyl groups on the carbon atom carrying the negative charge, less stable is the carbanion. However, benzyl carbanions are stabilized by resonance. Further, the presence of electron withdrawing group (-Cl) increase the stability of carbanion.Thus, the order of their decreasing stability :
In the isothermal expansion of an ideal gas
Which of the following salt are insoluble in water?
Beryllium is the first member of group II and forms covalent compounds which are said to be electron deficient. In many ways, beryllium resembles aluminium. Which of the following are possible ?
The reagents , NH4Cl and aqueous NH3 will precipitate :
Statements that are true among the following are: