Organic compounds., methods of purification of organic compounds with diagr...

methods of purification of organic compounds with diagrams ..

How to calculate atomic mass of an element, Q. How to calculate atomic mass...

Q. How to calculate atomic mass of an element? Copper survive as a mixture of two isotopes. The lighter isotope (Cu-63) amid 29 protons and 34 neutrons makes up 69.17% of coppe

Uses trihydric alcohols - hydrocarbon, Uses Trihydric alcohols (a) It i...

Uses Trihydric alcohols (a) It is used as antifreeze in automobile radiator. (b) It is used in the preparation of good quality of soap-hand lotions shaving creams and tooth

The atomic number of an element mass number & electrons, The atomic number ...

The atomic number of an element is 35 and mass number is 81. The number of electrons in the outer most shell is: (1) 7       (2) 6         (3) 5       (4) 3 Ans: 7

Atoms and molecules, what is atom

what is atom

Transition elements of the f-block, Q. Transition elements of the f-block? ...

Q. Transition elements of the f-block? The salient features of the chemistry of the transition elements of the f-block. Due to filling of electrons in the f-orbitals of an inne

Kinetics and equilibrium, 2NO(g)+2H2O yeilds N2+2H2O Write the rate law for...

2NO(g)+2H2O yeilds N2+2H2O Write the rate law for the pervious reaction if doubling the concentration of H2 doubles the reaction rate, and if doubling the concentration of NO incre

Metallic bonding,

Hardness, 1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)...

1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent a

What do you mean by homologous series, Q. What do you mean by Homologous Se...

Q. What do you mean by Homologous Series? Ans. How can we adequately learn about carbon compounds when there are so many of them? The answer lies in grouping similar c