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The ratio between the neutrons in C and Si with respect to atomic masses 12 and 28 is: (1) 2 : 3 (2) 3 : 2 (3) 3 : 7 (4) 7 : 3 Ans: 3 : 7
its preparation
10 g of h2 and 64 g of o2 are filled in a steel vessel and exploded amount of water produced in this reaction
Atoms in the water molecule are linked by: (1) Electrovalent bond (2)Covalent bond (3) Coordinate covalent bond (4) Odd electron bond Ans: Cov
Purpose
what are the applications of coulumetry ?
why original solution is prepared during basic radical analysis
Mechanism of reduction (b)
why are orbitals occupied singly first befor the pairing of electron occurs
The number of unpaired electrons in 1s 2 2s 2 2p 4 is: (1) 4 (2) 2 (3) 0 (4) 1 Ans: 2
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