Mock Cet: 2009 (Chemistry) : Vishwa Bharati Institute, Bangalore
Mock Cet: 2009 (Chemistry) : Vishwa Bharati Institute, Bangalore
Mock Cet: 2009 (Chemistry) : Vishwa Bharati Institute, Bangalore
(CHEMISTRY)
1) Electrolytes conduct electricity because
1) Their molecules contain unpaired electrons which are mobile
2) Their molecules contain loosely held electrons which get free under the influence of applied voltage
3) Molecules breakup into ions when voltage is applied voltage is applied
4) Molecules break up in to ions when the electrolyte is fused or dissolved in the solvent.
2) Specific conductance of 0.1 M nitric acid is 6.3x 10-2 ohm.cm-1, then the molar conductance in
ohm-1.cm2 mol-1 is
1) 630 2) 315 3) 100 4) 6300
3) An aqeuous solution of ferric chloride is
1) Neutral 2) Basic 3) Acidic 4) Soapy
4) The solution in which the normality is maximum is
1) 0.5MH2SO4 2)0.5M HCl 3) 0.M NaOH 4)0.5M CH3COOH
5) Which pair does not produce hydrogen.
1) Sodium + Water 2) Sodium + ethyl alcohol
3) Sodium + ether 4) Sodium + dil sulphuric acid
6) Iron displaces copper from copper sulphate solution because.
1) It is more reactive than copper. 2) It is heavier than copper.
3) It has affinity for Sulphate radical 4) It is more electropositive than copper
7) During the manufacture of aluminium bauxite is dissolved in cryolite which helps
1) To decrease the fusion temperature of aluminium.
2) To make it a good conductor of electricity.
3) To increase he yield of aluminium.
4) To reduce almina to aluminium easily.
8) The density of air is 1.293 gram /litre . When expressed in Kg/m3,it’s value is
1) 1.293 x10-3 Kgm-3 2) 1.293 Kg m-3 3) 1293 Kgm-3 4) 1.293 KJ
9) Which of the electronic configuration is impossible.
1) 1S2 2) 1S2 2S2 2P4 3) 1S2 2S2 2P2 4) 1S2 2S2 2P4 3S2 3P7
10) Enthalpy of formation of AB and CB compounds are -90KJ and – 100KJ . Then which of the following
statement is correct.
1) AB is more stable than CB 2) AB is less stable than CB
3) AB and CB endothermic compounds 4) Both b and c
11) Enthalpy of neutralization of sulphuric acid is higher than the enthalpy of neutral acetic acid because.
1) Sulphuric acid is dibasic acid 2) In case of acetic acid the neutralization is not complete.
3)Some heat is used up to ionize acetic acid 4)Acetic acid is monobasic acid.
SPACE FOR ROUGH WORK