A. 0.5
B. 1
C. 1.5
D. 2
Related Mcqs:
- When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________?
A. lighter
B. intermediate
C. heavier
D. are collected at same time - Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?
A. Phosphine
B. Phosphorus
C. Water
D. Phosphorus pentoxide - Phosphoric acid is a weak acid and its basicity is____________________?
A. 1
B. 3
C. zero
D. 2 - When two moles of ethyl chloride react with two moles of sodium in the presence of ether what will be formed ?
A. 2 moles of ethane
B. 1 mole of ethane
C. 2 moles of butane
D. 1 mole of butane - Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is__________________?
A. 2.0 x 10-10 mol dm-3
B. 1.414 x 10-5 mol dm-3
C. 1.0 x 10-10 mol dm-3
D. 1.0 x 10-5 mol dm-3 - Which of the following will give phosphoric acid one reaction with water_________________?
A. PCI5
B. P2O3
C. P2O5
D. All of the above - The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?
A. 3
B. 2.7
C. 2
D. 1.5 - Which of the following ion is stable in aqueous solution ?
A. H+
B. H-
C. Cl-
D. All are stable - Which one of the following gives white precipitate with aqueous solution of BaCl2?
A. NaHCO3
B. NaNO3
C. Na2CO3
D. Na2CrO4 - Aqueous solution of borax above 62°C gives crystals of________________?
A. Na2B4O7.4H2O
B. Na2B4O7.5H2O
C. Na2B4O7.2H2O
D. Na2B4O7.10H2O
