Multiple Choice QuestionsIn context with the transition elements, which of the following statements is incorrect?
In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes.
In the highest oxidation states, the transition metal shows basic character and form cationic complexes.
In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding.
In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding.
B.
In the highest oxidation states, the transition metal shows basic character and form cationic complexes.
In highest oxidation states transition metals form anionic complexes rather than that of cationic complexes.
A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution?
The solution formed is an ideal solution
The solution is non-ideal, showing +ve deviation from Raoult’s law.
The solution is non-ideal, showing –ve deviation from Raoult’s law.
The solution is non-ideal, showing –ve deviation from Raoult’s law.
The number of stereoisomers possible for a compound of the molecular formula CH3-CH =CH-(OH)-Me is
3
2
4
4
Which of the following pairs represents linkage isomers?
[Cu(NH3)4][PtCl4] and [Pt(NH3)4][CuCl4]
[Pd(PPh3)2(NCS)2] and [Pd(PPh3)2(SCN)2]
[CO(NH3)5NO3]SO4 and [CO(NH3)5SO4]NO3
[CO(NH3)5NO3]SO4 and [CO(NH3)5SO4]NO3
The major product obtained on the interaction of phenol with sodium hydroxide and carbon dioxide is
Benzoic acid
Salicylaldehyde
Salicylic acid
Phthalic acid
Which of the following on heating with aqueous KOH, produces acetaldehyde?
CH3COCl
CH3CH2Cl
CH2Cl CH2Cl
CH2Cl CH2Cl
The two functional groups present in a typical carbohydrate are
-OH and -COOH
-CHO and -COOH
>C = O and - OH
>C = O and - OH
In Cannizzaro reaction given below 
the slowest step is
The attack of 
at the carboxyl group
The transfer of hydride to the carbonyl group
The abstraction of proton from the carboxylic group
The abstraction of proton from the carboxylic group
Buna-N synthetic rubber is a copolymer of
and
H2C = CH – CH = CH2
H2C = CH – CH = CH2 and
H5C6 – CH = CH2
H2C = CH – CN and H2C = CH – CH = CH2
H2C = CH – CN and H2C = CH – CH = CH2
Switch
in order of their decreasing stability 
