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All bases do not dissolve in water. An alkali is a base that dissolves in water. They are soapy to touch, bitter and corrosive. Tasting or touching them may cause harm to us. (i) Acid + base →....... + water i. Alkali ii. Salt iii. Amphoteric oxides iv. None (ii) Bases generate ions in water i. H+ ii. H3O+ iii. OHiv. None (iii) A number representing hydronium ion concentration indicating the acidic or basic nature of solution as: i. –log [H+] ii. –log [H3O+] iii. 14 –log [{OH-}] iv. All (iv) Decrease in H+ ion concentration indicates i. Acidic solution ii. Basic solutioniii. Neutral solution iv. None (V) Blood is: i. Acidic ii. Basiciii. Neutral iv. None |
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Answer» (i) (b) (ii) (c) (iii) (d) (iv) (b) (v) (b) Blood is normally slightly basic, with a normal PH range of about 7.35 to 7.45. (i) (b) (ii) (c) (iii) (b) (iv) (c) (v) (b) |
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