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Acids, Bases and Salts W
powder. Add a little water and make a paste. ... which contains zinc carbonate. Soil treatment Excessive use of chemical fertilisers makes the soil acidic. ... the soil is either too acidic or too basic. When the soil is too acidic, it is treated with bases like quick lime (calcium oxide) or slaked lime (calcium hydroxide). If the soil is basic ...
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www.ncert.nic.in317 Alcohols, Phenols and Ethers Allylic and benzylic alcohols may be primary, secondary or tertiary. (ii) Compounds containing C OHsp2 − bond: These alcohols contain —OH group bonded to a carbon-carbon double bond i.e., to a
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www.ncert.nic.inPriority Areas : Fellowship will be given for research pertaining to the following priority areas: Rashtriya Madhyamik Shiksha Abhiyan (RMSA) : This scheme was launched in March, 2009 with the objective to enhance access to secondary education and to improve its quality.
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ncert.nic.inoxides, such as aluminium oxide, zinc oxide show both acidic as well as basic behaviour . Such metal oxides which r eact with both acids as well as bases to produce salts and water are known as amphoteric oxides. Aluminium oxide reacts in the following manner with acids and bases – Al 2 O 3 + 6HCl → 2AlCl 3 + 3H 2 O Al 2 O 3 + 2NaOH ...
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nanolab.berkeley.eduAdd a small amount of Zn powder (on edge of a spatula). Put the wafer in the solution for about 1 min. Watch for turbidity of the ITO. Transfer the wafer to another beaker containing conc. HCl (no dilution), for about 1 min. Take the wafer out and check if all the film was etched. Return to first solution if needed, at 50 degrees. HCl:HNO