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Q. What do you mean by Dative Covalent Bonds?Dative Covalent Bonds
Ans.
Sometimes both electrons in the shared pair come from one atom. This type of bond is called a dative covalent bond.
For example, in the ammonium ion (NH4+) a dative bond occurs between the hydrogen ion (H+) and nitrogen atom. Here, the nitrogen atom supplies both of the electrons of the covalent bond:
At 673k co is best reducing agent beacause gibs free energy curve is greater.
When α -particles are sent through a thin metal foil, most of them go straight through the foil because (one or more are correct) : (1) Alpha particles are much heavier than ele
1. Of, relating to, or formed at the lowest possible temperature of solidification for any mixture of specified constituents. Used especially of an alloy whose melting point is low
what is ment by whole number and packing fraction
Write down the chemical equations for the total burning of propane and butane gas in air. Show whether the substances are liquid (l), gaseous (g), or solid (s) under
physical properties of boron?
The value of the energy for the first excited state of hydrogen atom will be: (1) - 13.6 ev (2)- 3.40 eV (3) -1.51eV
The number of orbitals in 2p sub-shell is : (1) 6 (2) 2 (3) 3 (4) 4 Ans: 3
ester formation
The energy of second Bohr orbit of the hydrogen atom is -328 kJ mol-1, hence the energy of fourth Bohr orbit would be: (1) - 41 kJ mol -1 (2) -1312 kJ mol -1 (3) -164
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