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List of top Chemistry Questions asked in KCET
In set of reactions, identify D
KCET - 2021
KCET
Chemistry
Organic Chemistry
A compound ‘A’ (C
7
H
8
O) is insoluble in NaHCO
3
solution but dissolve in NaOH and give a characteristic colour with neutral FeCl
3
solution. When treated with Bromine water compound ‘A’ forms the compound B with the formula C
7
H
5
OBr
3
. ‘A’ is
KCET - 2021
KCET
Chemistry
functional groups
An organic compound ‘X’ on treatment with PCC in dichloromethane gives the compound Y. Compound ‘Y’ reacts with I
2
and alkali to form yellow precipitate of triiodomethane. The compound X is
KCET - 2021
KCET
Chemistry
Classical Idea Of Redox Reactions – Oxidation And Reduction Reactions
For the reaction A(g) + B(g) ⇌ C(g) + D(g); ΔH = -QKJ
The equilibrium constant cannot be disturbed by
KCET - 2021
KCET
Chemistry
Law Of Chemical Equilibrium And Equilibrium Constant
The product ‘A’ gives white precipitate when treated with bromine water. The product ‘B’ is treated with Barium hydroxide to give the product C. The compound C is heated strongly to form product D. The product D is
KCET - 2021
KCET
Chemistry
Reaction mechanisms
The major product of the following reaction is CH
2
= CH - CH
2
- OH
product
KCET - 2021
KCET
Chemistry
Addition reactions
The order of reactivity of the compounds C
6
H
5
CH
2
Br, C
6
H
5
CH(C
6
H
5
)Br, C
6
H
5
CH(CH
3
)Br and C
6
H
5
C(CH
3
)(C
6
H
5
)Br in S
N
2
reaction is
KCET - 2021
KCET
Chemistry
Organic Chemistry
Bond enthalpies of A
2
, B
2
and AB are in the ratio 2 : 1 : 2. If bond enthalpy of formation of AB is -100 KJ mol
-1
. The bond enthalpy of B
2
is
KCET - 2021
KCET
Chemistry
Chemical bonding and molecular structure
The compound A (major product) is
KCET - 2021
KCET
Chemistry
Organic Chemistry
The correct order for wavelengths of light absorbed in the complex ions
[CoCl(NH
3
)
5
]
2+
, [Co(NH
3
)
6
]
3+
, [Co(CN)
6
]
3-
is
KCET - 2021
KCET
Chemistry
Inorganic chemistry
Homoleptic complexes among the following are
(A) K
3
[Al(C
2
O
4
)
3
], (B) [CoCl
2
(en)
2
]
+
, (C) K
2
[Zn(OH)
4
]
KCET - 2021
KCET
Chemistry
Coordination complexes
The IUPAC name of [Co(NH
3
)
5
(CO
3
)]Cl is
KCET - 2021
KCET
Chemistry
coordination compounds
Peroxide effect is observed with the addition of HBr but not with the addition of HI to unsymmetrical alkene because
KCET - 2021
KCET
Chemistry
reaction mechanism
For the crystal field splitting in octahedral complexes,
KCET - 2021
KCET
Chemistry
Coordination complexes
When the absolute temperature of ideal gas is doubled and pressure is halved, the volume of gas
KCET - 2021
KCET
Chemistry
Gas laws
Which one of the following is correct for all elements from Sc to Cu ?
KCET - 2021
KCET
Chemistry
Trends in periodic table
Which of the following does not represent property stated against it ?
KCET - 2021
KCET
Chemistry
Trends in periodic table
A colourless, neutral, paramagnetic oxide of Nitrogen ‘P’ on oxidation gives reddish brown gas Q. Q on cooling gives colourless gas R. R on reaction with P gives blue solid S. Identify P, Q, R, S respectively
KCET - 2021
KCET
Chemistry
Inorganic chemistry
XeF
6
on partial hydrolysis gives a compound X, which has square pyramidal geometry ‘X’ is
KCET - 2021
KCET
Chemistry
Isomerism in Coordination Compounds
The correct order of boiling point in the following compounds is
KCET - 2021
KCET
Chemistry
Organic Chemistry
Which of the following property is true for the given sequence NH
3
> PH
3
> AsH
3
> SbH
3
> BiH
3
?
KCET - 2021
KCET
Chemistry
Trends in periodic table
Which of the following compound on heating gives N
2
O ?
KCET - 2021
KCET
Chemistry
Chemical Reactions
Zeta potential is
KCET - 2021
KCET
Chemistry
Colloids
Which of the following is an incorrect statement ?
KCET - 2021
KCET
Chemistry
Chemical bonding and molecular structure
A colloidal solution is subjected to an electric field than colloidal particles more towards anode. The amount of electrolytes of BaCl
2
, AlCl
3
and NaCl required to coagulate the given colloid is in the order
KCET - 2021
KCET
Chemistry
Colloids
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