CHEMISTRY TEST 2

The relative strength of boron trihalides as electron pair acceptors increases in the order as

Which trihalide is not hydrolysed ?

Which does not form precipitate with AgNO₃ ?

When ammonia is added to green aqueous solution of nickel (II) sulphate,the colour of the solution changes to blue violet. This is caused by

The correct IUPAC name of 

What is the maximum number of hydrogen bonds in which a water molecule can participate ?

Solubility of a salt A₂B₃ is 1x10^-4 mol L^-1 , itssolubility product is

If ammonia is added to pure water, the concentration of a chemical species already present will decrease. The species is

20 cm³ of xM solution of HCl is exactly neutralised by 40 cm³ or 0.5 M NaOH solution, the molarity of HCl solution is

In the given transformation, which of the following is the most appropriate reagent ?

Under what conditions of temperature and pressure the formation of atomic hydrogen from molecular hydrogen will be favoured most ?

(D) and (L) Configuration of above carbohydrate is

What are X and Y in the following reaction sequence

Copper sulphate solution reacts with KCN to give

Bakelite is obtained from phenol by reacting with

  (no ring substitution) Product (A) is

The energy required to break one mole of Cl—Cl bonds in Cl₂ is 242 kJ mol^-1. The longest wavelength of light capable of breaking single Cl—Cl bond is
(c = 3 x 10⁸ m sec^-1, NA = 6.023 x 10²³ mol^-1)

Acetamide reacts with NaOBr in alkaline medium to form

A 0.6% urea solution is isotonic with

  Product (D) will be

Identify the statement which is not correct regarding copper sulphate

What takes place when zinc metal is added to an aqueous solution containing magnesium nitrate and silver nitrate ?

1. Zn is oxidised
2. Mg²⁺ is reduced
3. Ag⁺ is reduced
4. No reaction

Consider the reaction, Cl₂ (g) + 2Br^- (aq) → Br₂ (g) + 2Cl^- (aq).The emf of the cell, when [Cl^-] = [Br₂] = [Br^-] = 0.01 M and Cl₂ gas is at 1 atm pressure, will be  =0.29V

Which of the following statements is not true about potash alum ?

For the process, NH₃ (g) + HCl(g) → NH₄Cl(s);

Which of the following reaction sequences would be the best for synthesis of t-butyl alcohol ?

The half life period of a first order reaction is 10 minutes. The time required for the concentration of reactant to change form 0.08 M to 0.02 M is