In pickle, high conc of salt used for preservation.which is responsiblle for a)end-osmosis b)exosmosis c)electrosomosis d)rev osmosis

A, B, C and D illustrate the properties of sulphuric acid whether dilute or concentrated.Choose the role played by sulphuric acid as A, B, C, or D which is responsible for the reactions. Some role(s) may be repeated. S + H_2SO_4(conc.) to 3SO_2 + 2H_2O

A, B, C and D illustrate the properties of sulphuric acid whether dilute or concentrated.Choose the role played by sulphuric acid as A, B, C, or D which is responsible for the reactions. Some role(s) may be repeated. NaNO_3 + H_2SO_(4)(conc.) overset(lt 200^@C)(rarr) NaHSO_4 + HNO_3 A = Typical acid property B = Nonvolatile acid C = Oxidising agent D = Dehydrating agent

Cohesion force existing amongst water molecules contributes to (a) plasmolysis (b) Ascent of sap (c) Osmosis (d) Translocation

Which phenomenon occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented? (a)Reverse osmosis takes place (b)Electroosmosis takes place (c)Dispersion medium begins to move (d)Dispersion medium becomes stationary

Which one is used for preparation of bread? (A) Lactobacillus (B) Streptobacillus (C) Aspergillus (D) S. cerevisiae

Presence of which of the following in man's blood is responsible for chill and high fever? (a) Haemoglobin (b) Mosquito's haemoglobin (c) Haemozoin (d) Both (b) & (c)

Classify the following into osmosis/diffusion. (a) Swelling up of a raisin on keeping in water. (b) Spreading of virus on sneezing. (c) Earthworm dying on coming in contact with common salt. (d) Shrinking of grapes kept in thick sugar syrup. (e) Preserving pickles in salt (f) Spreading of smell of cake being baked through out the house. (g) Aquatic animals using oxygen dissolved in water during respiration.

A colourless solution of a salt yields a white precipitate with dropwise addition of caustic alkali, which however. dissolves in excess of the alkali. The salt is a (a) zinc salt, (b) aluminium salt, (c) either a zinc salt or an aluminium salt, (d) none of (a) or (b).

Which of the following is not present in the bile? (a) Enzymes (b) Hepatocytes (c) Bile salts (d) Bilirubin

A] Sulphur B] Silver chloride C] Hydrogen chloride D] Copper [II] Sulphate E] Graphite. State which from A to E fits the description - 'A pink metal is deposited at the cathode during the electrolysis of the soln, of this salt '