Formation of Enamines

Q. Which of the following alcohols will yield the corresponding alkyl chloride on reaction with concentrated $HCl$ at room temperature?
[1 mark]

1. $C{H}_{3}C{H}_2-C{H}_2-OH$
2. 
3. 
4. 

Q. 34.no is a neutral ligand or a positive ligand

Q. What are the oxidising agents that convert alcohol into carboxylic acids?

Q.

Alcoholic solution of KOH is used for:

1. Dehalogenation

2. Dehydrohalogenation

3. Dehydrogenation

4. Dehydration

Q.

How can the terminal groups of amino acids be identified?

Q. Oxidation of ketone with $H_2{O}_2$ or with a peroxy acid is called Baeyer-Villiger oxidation. This oxidation reaction forms

1. carboxylix acid with the fewer number of carbons
2. an alcohol with the same number of carbon as in ketone
3. an ester
4. carboxylic acid with the same number of carbons as in the parent keton

Q. 50 A complex containing K+, Pt(IV), and Cl- is 100%ionised giving i=3 thus, possible Complex is 1)K2[Pt Cl4] 2)K2[PtCl6] 3)K3[Pt Cl5] 4)K[Pt Cl3]

Q. An example of ambidentate ligand is

1. Thiocyanate
2. Aquo
3. Amine
4. Chloro

Q. What is the denticity of the following ligand?

1. 2
2. 4
3. 6
4. 8

Q. Match Ligand Propertyate 1-ethylenediamine a-bident 2-hydrazene b-tridentate 3-dmg c-from hydrazenium ion on protonation 4-dien d-can form dimer

Q. Which of the following can act as both monodentate and bidentate ligand?

1. $S{O}_4^{2-}$
2. $H_{2}O$
3. $C{N}^{-}$
4. None of the above

Q. Which of the following is incorrect regarding maltose?

1. It consists of two glucopyranose units
2. It is a non-reducing sugar
3. Glycosidic bond between C1 of one unit and C4 of the other unit
4. It is a disaccharide

Q. Why NaoH has higher condactance than Nacl solution of same molarity?

Q. Ketones can be prepared by:

1. Clemmensen's reduction
2. Cannizzaro reaction
3. Rosenmund's reduction
4. Oppenauer's oxidation

Q. Which of the following pairs cannot be differentiated by Tollens' reagent?

1. Benzaldehyde and benzyl alcohol
2. Hexanal and 2-hexanone
3. 2-Hexanol and 2-hexanone
4. Pentanal and diethyl ether

Q. One mole of an organic compound requires 0.5 mole of oxygen to produce an acid. The compound may be:

1. alcohol
2. ether
3. ketone
4. aldehyde

Q. In which of the following pairs at least one of the compounds give positive Tollens test?

1. Glucose and sucrose
2. Glucose and fructose
3. Fructose and sucrose
4. Maltose and sucrose

Q. Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): Glucose and fructose are reducing sugars.

Reason (R): Glucose and fructose contain a free aldehydic and ketonic froup adjacent to a $H\underset{|}{\stackrel{|}{C}}OH$ group.

1. Both A and R are true and R is the correct explanation of A
2. Both A and R are true but R is not the correct explanation of A
3. A is true but R is false
4. A is false but R is true

Q. Which of the following(s) is/are correct regarding maltose?

1. It consists of two glucopyranose units
2. It is a non-reducing sugar
3. Glycosidic bond between C1 of one unit and C4 of the other unit
4. It is a disaccharide

Q. Which of the following enzyme is used in hydrolysis of maltose?

1. Maltase
2. Carboxylase
3. Hexokinase
4. None of the above

Q.

Number of moles of MnO₄^- required to oxidize 1 mole of ferrous oxalate Completely in acidic medium will be?

Q. In the preparation of ethylchloride by the reaction
$C{H}_{3}C{H}_{2}OH+HCl\underset{ZnC{l}_2}{\overset{\text{anhydrous}}{\to }}C{H}_{3}C{H}_{2}Cl+H_{2}O$
the major reason for using anhydrous $ZnC{l}_2$ as a catalyst is that

1. it absorbs water formed in the reaction and drives the equilibrium to the right
2. it coordinates with the product $C{H}_{3}C{H}_{2}Cl$ and drives the reaction to the right
3. it assist in forming the nucleohile $C{1}^{-}$ from HCl
4. it coordinates with oxygen of ethyl alcohol and increase the leaving ability of the -OH group

Q. Which of the following pairs is a tridentate ligands?

1. 
2. 
3. 
4. 

Q. The number of stereoisomers possible for the given compound is:

Q. Strecker synthesis is preparation of amino acids through aminonitrile intermediates.

1. True
2. False

Q. Identify the products in following reactions.

Q. What are the properties of the ligand Triphenylphosphine? Like what type of ligand it is? What is its strength? and What type of complex does it generally make?

Q. complex compounds with polydentate ligands involving ring structures are known as?

Q. Product for reaction-
Product obtained when phenylisocyanide is reacted with H₂ , Pt and H₂SO_{​​​​​​4}

Q. The reaction given below is called, ${}_{{}_R╱}^{{}^R╲}CHOH{+}_{{}_{C{H}_3}╱}^{{}^{C{H}_3}╲}CO\stackrel{\left[\right(C{H}_3{)}_{3}CO{]}_{3}Al}{\to }{}_{{}_R╱}^{{}^R╲}CO{+}_{{}_{C{H}_3}╱}^{{}^{C{H}_3}╲}CHOH:$

1. Tischenko’s reaction
2. Perkin’s reaction
3. Oppenauer oxidation
4. Schmidt reaction