ICSE chemistry
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Fill in the blanks by choosing the appropriate word / words from those given in the brackets: (benzoic acid, negative, positive, vapour, vapour pressure, benzal chloride, more, less, electropositivity, electronegativity, reducing, oxidising, basic, acidic, PCI5, SOCl2 phenol, water, ice.)
(i) When water freezes to_______the free energy of the system is_______.
(ii) The_________pressure of an aqueous solution of 0.1 M cane sugar is________than that of pure water.
(iii) When benzaldehyde reacts with_______it forms_________and POCl3.
(iv) An aqueous solution of a mixture of ammonium chloride and ammonium hydroxide is a________buffer solution with pH_______than seven.
(v) Halogens are strong_______agents because of their high
Ice, (+ve) , Vapour, less , PCl5, Benzal chloride , Basic, more , Oxidising, electronegativity
Sponsor Area
Complete the following statements by selecting the correct alternative from the choices given:
The hybridization of the iron atom in [Fe(CN)6I-3 complex is:
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sp3
-
dssp3
-
spsd2
-
dsp2
B.
dssp3
Complete the following statements by selecting the correct alternative from the choices given:
The product formed when aniline is warmed with chloroform and caustic potash is:
-
Phenyl chloride
-
Methyl isocyanide
-
Phenyl isocyanide
-
Nitro phenol
C.
Phenyl isocyanide
Complete the following statements by selecting the correct alternative from the choices given:For a dissociated solute in solution the value of van’t Hoff factor is:
For a dissociated solute in solution the value of van’t Hoff factor is:
-
Zero
-
One
-
Greater than one
-
Less than one
C.
Greater than one
Complete the following statements by selecting the correct alternative from the choices given:
The unit of equivalent conductance is:
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Ohm-1cm2equiv-1
-
Ohm-1cm2gm-1
-
Ohm cm2 equiv-1
-
Ohm-1 mole-1
A.
Ohm-1cm2equiv-1
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Mock Test Series
Mock Test Series



