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Q. Determine Atomic Number and Mass Number? One of the four naturally taking place isotopes of chromium has a mass number of 53. Determine the number of electrons, protons and
Principle of conductometry?
Q. Hybridisation and the magnetic properties of the complex? Pauling showed that there is a direct correlation between the type of hybridisation and the magnetic properties of
what is an acid
In Bohr's model, atomic radius of the first orbit is γ the radius of the 3rd orbit, is: (1) γ/ 3 (2)γ (3) 3γ (4) 9γ Ans: 9γ
Develop a table for the water quality parameters of surface water (rivers and lakes), and groundwater. A sample table is given below: Water quality parameters of different
CH 3 COOH ( ethanoic acid) + NH 3 ------------ > CH 3 COONH 4 + (HEAT) ---------- > CH 3 CONH 2 (methyleamine) + H 2 O
Q. What are boiler troubles? Discuss their consequences? Sol. Boiler feed water (water for steam making): water is very important engineering material which is mainly used fo
The nucleus of the element 21E^45 contains
The maximum number of electrons that can be accommodated in f sub shell is : (1) 2 (2) 8 (3) 32 (4) 14 Ans: 14
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