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genral characters of 1 a group elements
Every substance poses exact amount of energy known as internal energy or intrinsic energy (E).
The number of electrons in the nucleus of C 12 is (1) 6 (2) 12 (3)0 (4)3 Ans: 0
Upward and downward pressure are the same at any given depth Get a glass cylinder at least 15 cm long and 4 cm in diameter. Such a length of tube can be made from a straight-si
explain about p block element
why does the sulphur has three different valency
Q. Describe Water and Heavy Water? Water, H 2 O, the simple hydride of oxygen is a unique compound. It has extraordinarily high melting and boiling points compared to the other
Structure of atom
The expression for Bohr's radius of an atom is: (1) r= n 2 h 2 / 4 Π 2 me 4 z 2 (2) r= n 2 h 2 / 4 Π me 2 z 2 (3) r= n2h2/4 Π me 3
Sodium alkyl benzene sulphonates Sodium p-dodecyl benzene sulphonate abbreviated as S.D.S. work as a good detergent. It is most broadly used since 1975. These long chai
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