52671 + Interview Questions in Chemistry in Class 11

1.	An acidic flux among the following is
Answer» CaO MgO `SiO_2` `CaH_(2)` ANSWER :C

Discussion

2.	An acidic buffer mixture consists of ..........and.........
Answer» ANSWER :a weak ACID, its salt with a STRONG base

Discussion

3.	An acidic buffer contains equal concentration of acid and salt . The dissociation constant of acidis 10^(5)The P^(H)of the buffer solution is
Answer» 5 9 `4.49` `5.5` Solution :`pH =pK_a + log ""([S])/([A]),[S] =[A] THEREFORE pH =pKA =5`

Discussion

4.	An acidic buffer contains
Answer» Excess of `H^(+) ` IONS , few anions and excess of undissociated MOLECULES of WEAK acid Excess of cations ,few `OH^(-) ` ions and some undissociated molecules of weak acid. Excess of anions, few `H^(+) `ions and some undissociated molecules of weakacid STRONG acid and its salt with a weak base Solution :Acid buffer has CB of weak acid, and weak acid in equilibrium

Discussion

5.	An acidic buffer contains 0.06 M salt and 0.02 M acid . The dissociation constant of acid is 10 ^(-4) "The" P^(H)of the buffer solution is
Answer» 4 10 `4.48` `8.25` SOLUTION :`pH = 4 + LOG ""( 0.06)/( 0.02 )= 4+ 0. 48 = 4.48`

Discussion

6.	An acid type indicator, Hin differs in colour from its conjugate base (In^(-)) . The human eye is sensitive to colour differences only when the ratio ["In"^(-)]//["HIn"] is greater than 10 or smaller than 0.1. What should be the minimum change in the pH of the solution to observe a complete colour changes. (K_(a) = 1.0xx10^(-5))?
Answer» SOLUTION :`"HIn" HARR H^(+) + In^(-), K_(a) = ([H^(+)][In^(-)])/(["HIn"]) or [H^(+)] = K_(a) (["HIn"])/([In^(-)])` When `([In^(-)])/(["HIn"])=10, [H^(+)]=10^(-5)xx(1)/(10) = 10^(-6), pH = 6` When `([In^(-)])/(["HIn"])=0.1 , [H^(+)]=10^(-5)xx10=10^(-4), pH=4" " :. ` Minimum change in pH = 2

Discussion

7.	An acid solution of KReO_(4) samplecontaining 26.83mg of combined rhenium was reduced by passage through a column of granulated zinc. The effulent solution includingthe washings from thecolumn, was thentitratedwith 0.5N KMnO_(4). 11.45mL of the standard KMnO_(4) was requiredfor the reoxidation of all the rhendiumof all the rehniuym to the perryhentate ion Re_O_(4)^(-) . Assumingthat rhenium was the only element reduced, what is the oxisation state to whichrheniumwas reduced by the zinc column?
Answer» ANSWER :`+3`

Discussion

8.	An acid having pH = 6 is diluted 1000 times. What will be thepH of the final solution ?
Answer» Solution :pH = 6means `[H_(3)O^(+)=10^(-6)M`. After diluting 1000 times, `[H_(3)O^(+)]=10^(-6)//1000M = 10^(-9)M`. `:. [H_(3)O^(+)]` from `H_(2)O` cannot be neglected. Total `[H_(3)O^(+)]=10^(-9)+10^(-7)(10^(-2)+1)=10^(-7)(1.01)` `:. pH = - LOG (1.01xx10^(-7))=7-0.0043=6.9957`.

Discussion

9.	An acid HA ionises as HA hArr H^(+)+A^(-) The pH of 1.0 M solution is 5. Its dissociation constant would be
Answer» `1xx10^(-10)` 5 `5XX10^(-8)` `1xx10^(-5)` Answer :A

Discussion

10.	An acid-base titration consists of the controlled addition of a dissolved base to a dissolved acid (or the reverse). Acid and base react rapidly to neutralize each other. At the equivalence point, equivalents of reacting substances are equal. The pH during a titration changes every time with a drop of titrant added, but the rate of this change varies enormously. A titration curve, graph of pH as a function of the volume of titrant, displays in detail how the pH changes over the course of an acid base titration. Significantly. the pH changes most rapidly near the equivalence point. The exact shape of a titration curve depends on the K_(a) and K_(b) of acid and base The suitable indicator for this titration will be:
Answer» `HCL by NH_4 OH` ` RbOH by HBR` `CH_3COOH by NaOH` ` NH_3 by HNO_3` Solution :It is a SB vs SAtitration

Discussion

11.	An acid-base titration consists of the controlled addition of a dissolved base to a dissolved acid (or the reverse). Acid and base react rapidly to neutralize each other. At the equivalence point, equivalents of reacting substances are equal. The pH during a titration changes every time with a drop of titrant added, but the rate of this change varies enormously. A titration curve, graph of pH as a function of the volume of titrant, displays in detail how the pH changes over the course of an acid base titration. Significantly,the pH changes most rapidly near the equivalence point. The exact shape of a titration curve depends on the K_a and K_b, of acid and base. Which of the titration could it represent?
Answer» `HCl by NH_4 OH` ` RBOH by HBR` `CH_3COOH by NAOH` ` NH_3 by HNO_3` Solution :It is a SB vs SAtitration

Discussion

12.	An acid-base titration consists of the controlled addition of a dissolved base to a dissolved acid (or the reverse). Acid and base react rapidly to neutralize each other. At the equivalence point, equivalents of reacting substances are equal. The pH during a titration changes every time with a drop of titrant added, but the rate of this change varies enormously. A titration curve, graph of pH as a function of the volume of titrant, displays in detail how the pH changes over the course of an acid base titration. Significantly. the pH changes most rapidly near the equivalence point. The exact shape of a titration curve depends on the K_(a) and K_(b) of acid and base The pH at equivalence point is:
Answer» bromo THYMOL blue methyl orange methyl red all of these SOLUTION :Any indicator can be USED for SA VS SB

Discussion

13.	An acid-base titration consists of the controlled addition of a dissolved base to a dissolved acid (or the reverse). Acid and base react rapidly to neutralize each other. At the equivalence point, equivalents of reacting substances are equal. The pH during a titration changes every time with a drop of titrant added, but the rate of this change varies enormously. A titration curve, graph of pH as a function of the volume of titrant, displays in detail how the pH changes over the course of an acid base titration. Significantly,the pH changes most rapidly near the equivalence point. The exact shape of a titration curve depends on the K_a and K_b, of acid and base. < The suitable indicator for this titration will be :
Answer» BROMO thymol blue methyl orange methyl red all of these Solution :Any indicator can be used for SA VS SB

Discussion

14.	An acid base indicator (K_(a) =10^(-5)) has its pH range 4.4 - 6.0. The correct statement (s)amongst the following is/are
Answer» The indicator will be suitable for the titration of a strong acid against a weak base. The acidic colour of the indicator wil predominate if the concentration of acidic FORM is 4 times more than that of the basic form. The indicator will be suitable for the titration of weak acid against a strong base. The basic colour of the indicator will prevail when concentration of basic form will be at LEAST 10 times more than that of the acidic form. Solution :pH range ` lt7 rArr ` good for weak base (b)Acid colour dominate if pH ` lt 4.4 ` ` i.e. pK_(In)+log ""( In^(-))/(HIN) lt 4.4 ` `rArr log ""(In^(-))/(HIn) lt 4.4 -5=-0.6` ( c )basic colour will dominate if ` pH gt 6` ` rArr PK _(In)+log ""(I_n^(-) ) /(HIn)gt 6` `rArr log ""( I_n^(-))/( HIn)gt 6-5=1 rArr (I_n^(-))/(HIn) gt 10 `

Discussion

15.	An acid -base indicator has a Ka of 3.0 xx 10^(-5)The acid form of the indicator is red and the basic formis blue. Then
Answer» pH is 4.05 whenindicator is 75 % RED pH is 5.00 when indicator is 75% blue pH is 5.00 when indicator is 75 % red pH is 4.05 when indicator is 75%blue SOLUTION :` K_a =([H^(+) ][In^(-)])/( [HIn]) ` ` if 75%red RARR ([HI_n])/([In^(-)])=(75)/(25) =3 ` ` rArr [H^(+) ] =3 XX 10 ^(-5)xx 3 ` ` pH =5- log 9 =4.05` ` if 75% blue rArr ([In^(-)])/([HI_n])= 3 ` ` [H^(+) ] = 10 ^(-5)rArr pH =5`

Discussion

16.	An acid among the following is
Answer» ` B(OH)_3` `Al(OH)_3` ` FE(OH)_3` `Lu(OH)_3` SOLUTION :`B(OH)_3`is an ACID - ORTHOBORIC acid

Discussion

17.	An AB_(2)type of sturcture is present in
Answer» NaCl `N_(2)O` `Al_(2)O_(3)` `CaF_(2)` Solution :`AB_(2)` TYPE ofstructure ispresent in `CaF_(2)`

Discussion

18.	A^(n+1) is maximum oxidised by acidified KMnO_(4)solution into AO_3^(-)If 2.68 mmoles of A^(+(n+1))requires 32.16 mL of a 0.05 M acidified KMnO_4solution for complete oxidation, value of n is
Answer» Solution : CHANGE in OXIDATION no.of A = 4 – n Change in oxidation no.of Mn = 5 `( 4 - n ) XX 2.68 = 5 xx 32.16 xx 0.05:. n = 1 `

Discussion

19.	A^(n+1) is maximum oxidised by acidified KMnO_(4) solution into AO_(3)^(-). If 2.68 m moles of A^(+(n+1)) requires 32.16 mL of a 0.05M acidified KMnO_(4) solution for complete oxidation,value of n is
Answer» SOLUTION :Change in OXIDATION no. of `A = 4n` Change in oxidation no. of `Mn = 5` `(4n)X 2.68 = 5 xx 32.16 xx 0.05 :. N = 1`

Discussion

20.	Amphoteric oxide (X) + 3C + Cl_(2) rarr Poisonous gas+ anhydrous chloride (Y) Element forming 'Y' other than 'CI' reacts with concentrated HCl but leads to passivation with conce. HNO_(3). Select the correct option
Answer» `X = Z` and Y on reacting with `LiH` forms STRONG oxidising agent `X = Z` and Y on reacting with `LiH` forms strong reducing agent `X ne Z` andY is USED as a catalyst in FRIEDEL crafts reaction `X ne Z` and Y on reacting with `LiH` FORM strong oxidising agent Answer :B

Discussion

21.	Amphoteric hydroxides react with both alkalies and acids . Which of the followingGroup 2 metal hydroxides is soluble in sodium hydroxides ?
Answer» `Be(OH)_(2)` `Mg(OH)_(2)` `Ca(OH)_(2)` `BA(OH)_(2)` SOLUTION :`Be(OH)_(2)` being AMPHOTERIC dissolvein NaOH.

Discussion

22.	Amphoteric hydroxides react with both alkalies and acids. Which of the following Group-2 metal hydroxides is soluble in sodium hydroxide ?
Answer» `Be(OH)_(2)` `Mg(OH)_(2)` `CA(OH)_(2)` `Ba(OH)_(2)` SOLUTION :`Be(OH)_(2)` is insoluble in water due to its very high LATTICE enthalpy and high hydration enthalpy. It reacts with acid to give salt and water, and with base to give beryllate and water. `Be(OH)_(2)+2HCl to BeCl_(2) +2H_(2)O` `Be(OH)_(2)+2NaOH to Na_(2)BeO_(2) +2H_(2)O`

Discussion

23.	Amphoteric hydroxide among the following
Answer» `Mg(OH)_(2)` `Be(OH)_(2)` `CA(OH)_(2)` `BA(OH)_(2)` Answer :B

Discussion

24.	Amount of oxalic acid present in solution can be oxidised by its titration with KMnO_(4) solution in the presence of H_(2)SO_(4). The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl :
Answer» oxidises oxalic acid to carbon dioxide and water gets oxidised by oxalic acid to CHLORINE furnishes `H^(+)` IONS in ADDITION to those from oxalic acid reduces PERMANGANATE to `Mn^(2+)` Solution :N//A

Discussion

25.	Amount of oxalic acid required to prepare 250 mL of N//10 solution (Mol. Mass of oxalic acid =126) is :
Answer» `1.5759` G `3.15 g` `15.75 g` `63.0` g Solution :N//A

Discussion

26.	Amount of oxalic acid present in a solution can be determined by its titration with KMnO_(4) solution in presence of H_(2)SO_(4) but not in presence of HCI ? Explain why ?
Answer» SOLUTION :Both oxalic acid and HCI reduce `MbnO_(4)^(-) to Mn^(2+)` `2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+)rarr2Mn^(2+)+10CO_(2)+8H_(2)O` `2MnO_(4)^(-)+16 H^(+)+10CI^(-)rarr2Mn^(2+)+8H_(2)O+8H_(2)O+_5CI_(2)`ltbRgt As a result TITRATION does not give us the exact amount of oxalic acid present in the solution

Discussion

27.	Amorphous solids that exhibit same physical properties in all the directions are called ---------.
Answer» SOLUTION :ISOTROPIC

Discussion

28.	Amorphous solid can also be called _____
Answer» PSEUDO solids true solids super cooled liquids super cooled solids ANSWER :a,C

Discussion

29.	Amorphous solid can alos be called ….
Answer» pseudo SOLIDS TRUE solids super cooled liquids super cooled solids ANSWER :A::C

Discussion

30.	Amongst the given options, the compound in which all the atoms are in one plane in all the possible conformations (if any ), is (are)
Answer» `H_2C=C=O` `H_2C=C=CH_2` SOLUTION :Along C-C single bond, numerous CONFORMATIONS are possible in 1,3-butadiene (a) . In some of these conformations , all the atoms may not lie in the same plane. In `CH_2=C=CH_2` (d), due to sp-hybridization of the central carbon, H-atoms on the terminal `CH_2` groups lie in perpendicular planes . However, in `CH_2=C=O` (c ), due to replacement of `CH_2` by O the two H-atoms on the `sp^2`-HYBRIDIZED `CH_2` group lie in the same plane in which the two carbon and the oxygen atoms lie. In compound (B), due to linear structure of H-C`-=`C- PORTION of the molecule , the three H-atoms on -HC =`CH_2` portion always lie in the same plane. Thus, options (b) and (c ) are correct.

Discussion

31.	Amongst the following the total number of nucleophiles is : SO_(3), NH_(2)^(-), R^(-), H_(2)O, OR^(-), ROH, AlCl_(3), H^(-), BF_(3).
Answer» SOLUTION :Six, i.e., `NH_(2)^(-), R^(-), H_(2)overset(..)(O): , :UNDERSET(..)overset(..)(O)R^(-) , Runderset(..)overset(..)(O)H, H^(-)`

Discussion

32.	Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is KCN " " K_(2)SO_(4) " " (NH_(4))_(2)C_(2)O_(4) " " NaCl " " Zn(NO_(3))_(2) " " FeCl_(3) " " K_(2)CO_(3) " " NH_(4)NO_(3) " " LiCN
Answer» SOLUTION :KCN, `K_(2)CO_(3)` and LiCN are salts of weak acid and STRONG base. Hence, their aqueous SOLUTIONS are basic and turn red litmus PAPER blue.

Discussion

33.	Amongst the following the reagent that would convert 2-hexyne into trans-2-hexene is
Answer» `H_(2).Pt//O_(2)` `H_(2).Pd//SO_(4)^(2-)` `Li//NH_(3)//C_(2)H_(5)OH` `NaBH_(4)` Answer :C

Discussion

34.	Amongst the following the one which can exist in free state as a stable compound is
Answer» `C_(7)H_(9)O` `C_(8)H_(12)O` `C_(6)H_(11)O` `C_(10)H_(17)O_(2)` Solution :A stable compound has a WHOLE number value of DBE. For example, DBE of `C_(8)H_(12)O` `= (8(4-2)+12(1-2)+1(2-2))/(2) +1=2+1 = 3` All other formulae have fractional values of DBE, i.e., `C_(7)H_(9)O, C_(6)H_(11)O` and `C_(10)H_(17)O_(2)` are 3.5, 3.5 and 2.5 respectively.

Discussion

35.	Amongst the following, the most basic compound is
Answer» benzylamine aniline acetanilide p-nitroaniline Answer :A

Discussion

36.	Amongst the following the most basic compound is
Answer» p-Nitroaniline Acetanilide Aniline Benzylamine Answer :D

Discussion

37.	Amongst the following, the metals which become passive when dipped in conc. HNO_(3)" are "Sn,Pb,Fe,Cr,Zn,Ni,Hg,Al,Cu.
Answer» SOLUTION :4, i.e., Fe, Cr, Ni and AL become PASSIVE when DIPPED in conc. `HNO_(3)`.

Discussion

38.	Amongst the following, the maximumnumber of compounds which do not behaveas Lewis acids are : SnCl_(2),H_(3)BO_(3),AlCl_(3),CF_(4),SiF_(4),"CCl"_(4),BF_(3),SnCl_(4)
Answer» SOLUTION :Three , `CF_(4), SiCl_(4), "CCl"_(4)`.

Discussion

39.	Amongst the following , the maximum number of alkenes which show geometricalisomers are 1-pentene, 2-butene, 2-pentene, 1-pentene , 1-butene, propene, 2,3-dimethyl-2-butene, 3-hexene, 1-hexene.
Answer» SOLUTION :THREE , 2-butene, 2-pentene , 3-hexene.

Discussion

40.	Amongst the following, the compound that can be most readily sulphonated
Answer» Benzene METHOXY benzene Toulene Chloro benzene Solution :RING ACTIVATING GROUP = Methoxy

Discussion

41.	Amongst the following the compound having the most acidic alpha hydrogen is
Answer» `H_3"CC"HO` `H_3"CC"OCH_3` `CH_3COCH_2CHO` `H_3"CC"COH_2CO_2CH_3` Solution :`-CH_(2^-)-` is FLANKED by TWO electron ATTRACTING `GT C=O` groups

Discussion

42.	Amongst the following select the element havinghighest ionization enthalpy.
Answer» SODIUM POTASSIUM beryllium magnesium ANSWER :C

Discussion

43.	Amongst the following phenols which is most acidic
Answer» Phenol o-nitrophenol p-nitrophenol m-nitrophenol Answer :C

Discussion

44.	Amongst the following molecules the one with the largest distance between the two adjacent carbon atoms is
Answer» Ethane Ethene Ethyne Benzene Answer :A

Discussion

45.	Amongst the following in above mention the total number of intensive physical properties.
Answer» Solution :Intensive PROPERTIES are independent on MASS. (a),(B) , (c ), (d) and (f).

Discussion

46.	Amongst the following, identify the species with an atom in +6 oxidation state ____
Answer» `MnO_(4)^(-)` `Cr(CN)_(6)^(2-)` `NiF_(6)^(2-)` `CrO_(2)Cl_(2)` Answer :D

Discussion

47.	Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is
Answer» [Ne] `3s^(2) 2p^(1)` [Ne] `3s^(2) 3P^(3)` [Ne]`3s^(2) 3p^(2)` [Ar]`3D^(10) 4s^(2) 4p^(3)` Solution :[Ne] `3s^(2) 3p^(3)` In the electronic configuration of (B) and (D) half-filled 3p orbitals (B) represents PHOSPHORUS and (Q represents arsenic but (B) is smaller in size than (D) So, (B) has highest ionisation enthalpy. Ionisation enthalpy increases left to RIGHT in the periodic table as the size decreases.

Discussion

48.	Amongst the following elements (whose electronic configurations are given below), the one having the highest ionization enthalpy is ……….. .
Answer» `[Ne] 3S^(2) 3p^(1)` `[Ne] 3s^(2) 3p^(2)` `[Ne] 3d^(10) 4s^(2) 4P^(3)` `[Ne] 3s^(2) 3p^(3)` Answer :d

Discussion

49.	Amongst the following elements (whose electronic configurations are given below), the one having the highest first ionization energy is
Answer» `[Ne]3S^(2)3p^(1)` `[Ne]3s^(2)3^(3)` `[Ne]3s^(2)3p^(2)` `[Ar]3s^(10)4S^(2)4p^(2)` ANSWER :D

Discussion

50.	Amongst the following elements whose electronic configurationaregiven below, the one having the highest ionisation enthalpy is
Answer» `[Ne] 3s^(2) 3p^(1)` `[Ne] 3s^(2) 3p^(3)` `[Ne] 3s^(2) 3p^(2)` `[Ar] 3D^(10) 4s^(2) 4p^(3)` Solution :(B) and (d) have exactly half -filled 3p orbitals but (b) is smaller in SIZE than (d) . Hence ,(b) has higest ionization enthalpy.

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

An acidic flux among the following is

An acidic buffer mixture consists of ..........and.........

An acidic buffer contains equal concentration of acid and salt . The dissociation constant of acidis 10^(5)The P^(H)of the buffer solution is

An acidic buffer contains

An acidic buffer contains 0.06 M salt and 0.02 M acid . The dissociation constant of acid is 10 ^(-4) "The" P^(H)of the buffer solution is

An acid having pH = 6 is diluted 1000 times. What will be thepH of the final solution ?

An acid HA ionises as HA hArr H^(+)+A^(-) The pH of 1.0 M solution is 5. Its dissociation constant would be

An acid base indicator (K_(a) =10^(-5)) has its pH range 4.4 - 6.0. The correct statement (s)amongst the following is/are

An acid -base indicator has a Ka of 3.0 xx 10^(-5)The acid form of the indicator is red and the basic formis blue. Then

An acid among the following is

An AB_(2)type of sturcture is present in

A^(n+1) is maximum oxidised by acidified KMnO_(4)solution into AO_3^(-)If 2.68 mmoles of A^(+(n+1))requires 32.16 mL of a 0.05 M acidified KMnO_4solution for complete oxidation, value of n is

A^(n+1) is maximum oxidised by acidified KMnO_(4) solution into AO_(3)^(-). If 2.68 m moles of A^(+(n+1)) requires 32.16 mL of a 0.05M acidified KMnO_(4) solution for complete oxidation,value of n is

Amphoteric oxide (X) + 3C + Cl_(2) rarr Poisonous gas+ anhydrous chloride (Y) Element forming 'Y' other than 'CI' reacts with concentrated HCl but leads to passivation with conce. HNO_(3). Select the correct option

Amphoteric hydroxides react with both alkalies and acids . Which of the followingGroup 2 metal hydroxides is soluble in sodium hydroxides ?

Amphoteric hydroxides react with both alkalies and acids. Which of the following Group-2 metal hydroxides is soluble in sodium hydroxide ?

Amphoteric hydroxide among the following

Amount of oxalic acid present in solution can be oxidised by its titration with KMnO_(4) solution in the presence of H_(2)SO_(4). The titration gives unsatisfactory result when carried out in the presence of HCl, because HCl :

Amount of oxalic acid required to prepare 250 mL of N//10 solution (Mol. Mass of oxalic acid =126) is :

Amount of oxalic acid present in a solution can be determined by its titration with KMnO_(4) solution in presence of H_(2)SO_(4) but not in presence of HCI ? Explain why ?

Amorphous solids that exhibit same physical properties in all the directions are called ---------.

Amorphous solid can also be called _____

Amorphous solid can alos be called ….

Amongst the given options, the compound in which all the atoms are in one plane in all the possible conformations (if any ), is (are)

Amongst the following the total number of nucleophiles is : SO_(3), NH_(2)^(-), R^(-), H_(2)O, OR^(-), ROH, AlCl_(3), H^(-), BF_(3).

Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is KCN " " K_(2)SO_(4) " " (NH_(4))_(2)C_(2)O_(4) " " NaCl " " Zn(NO_(3))_(2) " " FeCl_(3) " " K_(2)CO_(3) " " NH_(4)NO_(3) " " LiCN

Amongst the following the reagent that would convert 2-hexyne into trans-2-hexene is

Amongst the following the one which can exist in free state as a stable compound is

Amongst the following, the most basic compound is

Amongst the following the most basic compound is

Amongst the following, the metals which become passive when dipped in conc. HNO_(3)" are "Sn,Pb,Fe,Cr,Zn,Ni,Hg,Al,Cu.

Amongst the following, the maximumnumber of compounds which do not behaveas Lewis acids are : SnCl_(2),H_(3)BO_(3),AlCl_(3),CF_(4),SiF_(4),"CCl"_(4),BF_(3),SnCl_(4)

Amongst the following , the maximum number of alkenes which show geometricalisomers are 1-pentene, 2-butene, 2-pentene, 1-pentene , 1-butene, propene, 2,3-dimethyl-2-butene, 3-hexene, 1-hexene.

Amongst the following, the compound that can be most readily sulphonated

Amongst the following the compound having the most acidic alpha hydrogen is

Amongst the following select the element havinghighest ionization enthalpy.

Amongst the following phenols which is most acidic

Amongst the following molecules the one with the largest distance between the two adjacent carbon atoms is

Amongst the following in above mention the total number of intensive physical properties.

Amongst the following, identify the species with an atom in +6 oxidation state ____

Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is

Amongst the following elements (whose electronic configurations are given below), the one having the highest ionization enthalpy is ……….. .

Amongst the following elements (whose electronic configurations are given below), the one having the highest first ionization energy is

Amongst the following elements whose electronic configurationaregiven below, the one having the highest ionisation enthalpy is