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Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
Q. What is gamma radiation? The third kind of radiation is gamma radiation (g-radiation) which is high-energy electromagnetic radiation. Gamma radiation is typically emitted
The atom of the element having atomic number 14 should have: (1) One unpaired electron (2) Two unpaired electrons (3) Three unpaired electrons (4) Four unpaired electr
Q. What do you mean by Mixtures of Matter? A mixture is a mixture of two or more pure substances in which each substance retains its individual properties. Concrete mainly ro
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
A Chloroplatinic of a diacid base contain 39% of platinum what is the molecular weight of the base
Bond formed in crystal by anion and cation is: (1) Ionic (2) Metallic (3) Covalent (4) Dipole Ans: Ionic
Point imperfection: They are imperfect point-like regions in the crystal. One or two atomic diameters are the typical size of a point imperfection. A substitution impurity and an
The electronic configuration of silver atom in ground state is: (1) [ Kr]3 d 10 4 s 1 (2) [Xe]4f 14 5d 10 6s 1 (3) [ Kr]4d 10 5 s
Hydrolysis of an ester into acid and alcohol can be done by acid or alkali. which is the best method and why?
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