A. zero
B. first
C. second
D. third
Which of the following does not participate in carbylamine reaction?
The active mass of 5.6 litres of O2 at STP is
A sample of water contains 11.1 ppm of CaCl2 and 9.5 ppm of MGCl2 the hardness of water sample is
For a reversible reaction, if the concentrations of the reactants are doubled, then the equilibrium constant value
9.2 grams of N2O4(g) is taken one liter vessel and heated till the following equilibrium is reached N2O4 (g)⇔2NO2(g).At equilibrium 50% of N2O4(g) is dissociated.The value of Kc is
The correct trends in the hydrides from Bi to N is
The first organic compound synthesized in the laboratory from an inorganic compound is:
Solubility product of Ba(OH)2 and Al(OH)3 are 1.8x10-10 and 2.4x10-20 respectively.If both Al3+ and Ba+2 ions are present is a solution,which one will be precipated on addition of Ammonium hydroxide solution
Oxide of nitrogen which gives reddish brown colour when exposed to air is
Active mass of 56 g of N2 contained in 2 ltr.Flask is