Catalytic Hydrogenation

Q. The main product of the following reaction is
$C_6{H}_{5}C{H}_{2}CH\left(OH\right)CH(C{H}_3{)}_2\stackrel{conc.H_{2}S{O}_4}{⟶}?$

1. 
2. 
3. 
4. 

Q.

Chlorine reacts with sodium hydroxide under various condition to give

1. Sodium hypochlorite

2. Sodium chlorate

3. Sodium chloride

4. All of these

Q. 42. In which of the following molecules/ions BF3 NO2, NH2- and H2O, the central atom is sp2 hybridized?\lbrack AIPMT (Prelims)-2009\rbrack(1) NH2 and H2O(2) NO2 and H2O 3)BF3, and NO-(4) NO2 and NH2

Q.

Chlorine is in +1 oxidation state in

1. ICl

2. HCl

3. HClO4

4. Cl2O

Q. Isomers of Oct-1, 3, 5, 7-Tetraene

Q. In the gaseous reaction of the type aA + bB cC+dD

Q.

The oxidation numbers of C - 1 and C - 2 in propene \(CH_3{}2CH ={}^1CH_2) are respectively

1. -1, -2

2. +2, -1

3. -2, -1

4. -1, -1

Q. Which of the following is not true regarding catalytic hydrogenation of alkenes and alkynes?

1. Catalytic hydrogenation occurs by reduction.
2. Ni/Pt/Pd is used as catalyst.
3. Catalytic $H_2$ addition is a anti addition reaction.
4. $C{H}_4$ can’t be prepared by catalytic hydrogenation

Q. which of the following pair will show common ion effect? (a)BaCl2+Ba(NO3)2 (b)AgCN+KCN (c)NaOH+NH4CN (d)HCOOH+H2SO4 GIVE REASON.EXPLAIN ALL OPTIONS

Q. In aldehyde R-C(O)H and in carboxylic acid R-COOH R can be hydrogen but in ketone R-O-R and in alcohol R-OH why R cant be hydrogen

Q. Which of the following reaction is also known as sabatier and senderens reaction?

1. Catalytic hydrogenation by using finely divided nickel
2. Wurtz reaction
3. Soda lime reaction
4. Kolbe's electrolysis

Q. 10.Kp is how many times equal to Kc for the given reaction? N2(g)+3H2(g)=2NH3(g)

Q.

What is the oxidation state of Manganese in Manganese (VII) oxide?

1. +3

2. +7

3. +5

4. +1

Q. 33. Why first three members of alkanes are not consider as isomers?

Q.

What is washing soda?

1. Sodium Hydroxide

2. Sodium Carbonate

3. Sodium Chloride

4. Sodium Bicarbonate

Q.

Oxidation is accompanied by an increase in the oxidation state - True or False?

1. True

2. False

Q.

The oxidation state of $Mn$ in $K_{2}Mn{O}_4$ is

1. +7

2. +2

3. -2

4. +6

Q. 3. Identify the most stable species in the following set of ions giving reason: a) (CH3)+ b) (CH2Cl)+ c) (CHCl2)+ d) (CCl3)+

Q.

Oxidation state of $Cr$ in $K_{2}C{r}_2{O}_7$ is

1. +6

2. +2

3. -2

4. -7

Q.

oxidation state of oxygen in Hydrogen peroxide is

1. -1

2. -2

3. +2

4. +1

Q.

Oxidation number of S in $S^{2-}$ is

1. 0

2. +2

3. −2

4. −6

Q. 5. 0.25 mole of a hydrocarbon requires 0.5 mole of hydrogen for complete saturation. Possible formula of the hydrocarbon is(c) C3H8(d) C3H4(b) C3H6

Q. 88.How hydrolysis occurs if water is a very very weak electrolyte?

Q.

Which of the following compound will have the least energy for ionisation of Cl as
$C{l}^{-}$

1. C₆H₅Cl

2. (CH₃)₂ CHCl

3. CH₂=CH- CH₂Cl

4. 

Q.

In compounds formed by the union of different elements, the more electronegative atom will have negative oxidation number.

1. True

2. False

Q.

The number of isomers possible for a disubstituted benzene are:

1. Three

2. Four

3. One

4. Two

Q.

The oxidation state of $S$ in $N{a}_2{S}_2{O}_3$ is

1. +2

2. -1

3. +5

4. +2.5

Q. 26 Which of the following alkane upon dechlorination can give only two products? 1) Propane 2) methane 3) C(CH3)4 4) Cyclohexane

Q.

Find oxidation state of $N$ in $HN{O}_3$

1. +3

2. +5

3. +2

4. -3

Q.

Oxidant and Reductanct in the following reactions are respectively

$10H^{+}\left(aq\right)+4Zn\left(s\right)+N{O}_3^{-}\left(aq\right)\to 4Z{n}^{2+}\left(aq\right)+N{H}_4^{+}\left(aq\right)+3H_{2}O\left(l\right)$

1. 

2. 

3. 

4.