Solutions
The relative lowering of vapour pressure of 0.2 molal solution in which solvent is benzene
in bioremediation gibberella fusarium is used to break down____?
The number of moles of a solute in its solution is 20 and total no. of moles are 80. The mole fraction of solute wil be: (a) 2.5 (b) 0.25 (c) 1 (d) 0.75
Which ion has the lowest radius from the following ions(a) Na+ (b) Mg2+ (c) Al3+ (d) Si4+ Answer: (d) All are the iso-electronic species but Si
what are condensation polymerization give in with 2 examples
Which is more reactive towards nucleophilic substitution aryl halide or vinyl halides
Choose the right answer from following. The vapour pressure lowering caused by the addition of 100 g of sucrose(molecular mass = 342) to 1000 g of water if the vapour pressure of pure water at 25degree C is 23.8 mm Hg: (a)1.25 mm Hg (b) 0.125 mm Hg (c) 1.15 mm H
Explain the reason behind that the chemists have not created a periodic table of compounds?
Describe briefly the three facts on the evaporation?
6. 20 gm of hydrogen is present in 5 litre vessel. The molar concentration of hydrogen is
Among the below shown which crystal will be soft and have low melting point: (a) Covalent (b) Ionic (c) Metallic (d) MolecularAnswer: (d) Molecular crystals are soft and have low melting point.
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