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Q. Explain about Neutral and Amphoteric oxides?
Neutral oxides have neither acidic nor basic properties and when dissolved in water, they give neutral solutions, e.g., CO, N20, etc.
Amphoteric oxides show both acidic and basic properties. They react with acids as well as with alkalis to give salt and water, e.g., Al203, ZnO, PbO, etc.
ZnO + 2HCl-----------------> ZnCl2+ H2O
ZnO + 2NaOH---------------> Na2ZnO2+ H2O
Al2O3+ 6HCl--------------> 2AlCl3+ 3H2O
Al2O3+ 2NaOH + 3H2O-----------> 2NaAl (OH)4
determine alcohol acidity in oats
For azimuthal quantum number l= 3 , the maximum number of electrons will be: (1) 2 (2) 6 (3) 0 (4) 14 Ans: 14
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Classification of polymers - Elastomers The polymers which have elastic character such as rubber (a material that can return to its unique shape after stretching is said to be
Methods of showing concentrations of solutions The concentration of a solution can be provided in various ways. (A) Percent by mass (B) Molarity (C) molality (D) Mo
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Why alcoholic acidity express in terms of sulphuric acid
i) Electrophillic substitution in case of aromatic amines takes place more readily than benzene. ii) Nitro compounds have higher boiling points than hydrocarbons having almost s
The correct electronic configuration of Ti(Z= 22) atom is: (1) 1s 2 , 2s 2 , 2p 6 , 3p 6 , 4s 2 , 3d 2 , (2) 1s 2, 2s 2 , 2p 6 , 3p 6 , , 3d 4 , (3) 1s 2 , 2s
Condensers are an integral part of a distillation process. As we have seen, the vapor feed from the distillation column can enter either a partial condenser or a complete condenser
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