ICSE chemistry
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Fill in the blanks by choosing the appropriate word / words from those given in the brackets:
(Raoult’s, Arrhenius, lateral, sodium, magnesium, negative, positive, non-ideal, ideal, iron, copper, van’t Hoff, p- p orbital, ethanol, ethanoic acid, methanoic acid, methanol, propanoic acid.)
(i) For a spontaneous change to take place, the ΔS of the system should be______and ΔG of the system should be________.
(ii) Hydrolysis of methyl propanoate gives______and_______.
(iii) Solutions which strictly obey-law are called__________solutions.
(iv) π bonds are formed by the-overlap of_______orbitals.
(v) Zinc can displace_______from CuSO4 solution, but cannot displace_________from MgSO4 solution.
positive,negative , Methanol, propanoic acid , Raoult’s ideal , p-p orbital , Cooper, magnesium
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The quantity of electricity required to deposit 1-15g of sodium from molten NaCl (Na = 23, Cl = 35.5) is:
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IF
-
0.5 F
-
0.05 F
-
1.5 F
C.
0.05 F
When acetic acid is reacted with calcium hydroxide and the product is distilled dry, the compound formed is:
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Calcium acetate
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Acetone
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Acetaldehyde
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Acetic anhydride
B.
Acetone
The [OH-] concentration of a weak base is given by:
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Ckb
-
-
-
Ckb
C.
In a plot of log k vs 1 /T, the slope is:
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- Ea/2.303
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Ea/2.303R
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Ea/ 2.303
-
- Ea/2.303R
D.
- Ea/2.303R
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Mock Test Series
Mock Test Series



