11312022
Descripción
Test por raghu Katagall, actualizado hace más de 1 año
|
Creado por raghu Katagall
hace más de 6 años
|
|
Pregunta 1
Pregunta
Which of the following compounds contain all the carbon atoms in the same hybridisation state?
Respuesta
-
H –CΞC-CΞC-H
-
CH3-CΞC-CH3
-
CH2=C=CH2
-
CH2=CHCN
Pregunta 2
Pregunta
1.2g of organic compound liberates ammonia during Kjeldahlization which takes 30ml of 1M HCl . The percentage of nitrogen in organic compound is
Respuesta
-
30
-
35
-
46.67
-
20.8
Pregunta 3
Pregunta
Which among the following is an ambidient nucleophile?
Respuesta
-
H2O
-
RCN
-
CN-
-
NH3
Pregunta 4
Pregunta
Alkyl groups are ortho-para directing groups because of
Respuesta
-
Steric effect
-
Electromeric effect
-
Hyperconjugation effect
-
All the three
Pregunta 5
Pregunta
In which of the following, functional isomerism is not possible?
Respuesta
-
Alcohols
-
Aldehydes
-
Alkyl halides
-
Cyanides
Pregunta 6
Pregunta
The IUPAC name of CH3-CO-CH2-CH2-COOH
Respuesta
-
1-hydroxy pentane-1,4-dione
-
1,4-dioxopentanol
-
1-carboxybutan-3-one
-
4-oxopentanoic acid
Pregunta 7
Pregunta
Vitamin B12 contains
Respuesta
-
Co
-
Mg
-
Mn
-
Fe
Pregunta 8
Pregunta
Arrange the following carbanions in order of their decreasing stability.
(CH3)3C- -CCl3 (CH3)2CH- C6H5-CH2-
Respuesta
-
(CH3)2CH-> -CCl3 > C6H5-CH2-> (CH3)3C-
-
-CCl3 > C6H5-CH2- > (CH3)2CH- > (CH3)3C-
-
(CH3)3C- > (CH3)2CH- > C6H5-CH2- > -CCl3
-
C6H5-CH2- > -CCl3 > (CH3)3C- > (CH3)2CH-
Pregunta 9
Pregunta
The reason for the greater range of oxidation states in actinoids is attributed to,
Respuesta
-
Actinoids contraction
-
5f,6dand 7s levels having comparable energies
-
4f and 5d levels being close in energies
-
The radioactive nature of actinoids
Pregunta 10
Pregunta
The magnetic nature of the element depends on the presence of unpaired electrons . Identify the configuration of the transition element which shows highest magnetic moment?
Respuesta
-
3d^2
-
3d^8
-
3d^7
-
3d^5
Pregunta 11
Pregunta
Which of the following statements is wrong regarding lanthanoids?
Respuesta
-
Ln(III) compounds are predominantly ionic in nature
-
Ln(III) hydroxides are mainly basic in nature
-
The ionic size of Ln (III) ions decreases with increase of atomic number
-
Ln(III) compounds are generally colourless.
Pregunta 12
Pregunta
Glycosidic linkage is an
Respuesta
-
Amide linkage
-
Ester linkage
-
Ether
-
none of these
Pregunta 13
Pregunta
In chromite ore the oxidation state of iron and chromium are respectively,
Respuesta
-
+3,+2
-
+3,+6
-
+2,+6
-
+2,+3
Pregunta 14
Pregunta
Highest oxidation state of manganese in fluoride is +4 (MnF4) but highest oxidation state in oxides is +7 (Mn2O7) because,
Respuesta
-
Fluorine is more electronegative than oxygen
-
Fluorine does not possess d-orbitals
-
Fluorine stabilizes lower oxidation state
-
In covalent compounds fluorine can form single bond only while oxygen forms double bond.
Pregunta 15
Pregunta
Electronic configuration of a transition element ‘X’ in +3 oxidation state is [Ar]3d5. What is its atomic number?
Respuesta
-
25
-
26
-
27
-
24
Pregunta 16
Pregunta
KMnO4 acts as an oxidizing agent in alkaline medium. When alkaline KMnO4 is treated with KI, iodide ion is oxidized to,
Respuesta
-
I2
-
IO-
-
IO3-
-
IO4-
Pregunta 17
Pregunta
Which of the following sequence is correct regarding field strength of ligands as per spectrochemical series?
Respuesta
-
SCN- < F- < CN- < CO
-
F- < SCN- < CN-< CO
-
CN- < F- < CO< SCN-
-
SCN- < CO <F- <CN-
Pregunta 18
Pregunta
According to crystal field theory M-L bond in a complex is ,
Respuesta
-
Purely ionic
-
purely coordinate
-
purely covalent
-
partially covalent
Pregunta 19
Pregunta
Drugs used for relieving pain are called
Respuesta
-
Antibiotics
-
Analgesics
-
antipyretics
-
anaesthetics
Pregunta 20
Pregunta
Five membered ring structure of glucose is known as
Respuesta
-
Aromatic
-
Pyranose
-
Furanose
-
Baeyer’s structure
Pregunta 21
Pregunta
The most widely used analgesic for severe pain is
Respuesta
-
Aspirin
-
Phenacetin
-
paracetomol
-
morphine
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.