CHEMISTRY TEST 4

CH₂ = CH — CH = CH₂ and C₆H₅CH = CH₂

CH₂ = CH — CN and CH₂ = CH — CH = CH₂

Boric acid is a very weak monobasic acid

Boric acid contains planar BO₃ units which are bonded together through hydrogen bonds forming a layer structure

Boric acid is used as a food preservative

Boric acid is a tribasic acid

2s

2p

3d

2p and 3d both

x > y > z

z > y > x

y > x > z

y > z > x

ΔH and ΔS both are positive and ΔH = TΔS

ΔH and ΔS both are negative and ΔH > TΔS

ΔH is positive, ΔS is negative and ΔH < TΔS

ΔH is negative, ΔS is positive and TΔH > ΔS

12, 15

15, 30

30, 15

32, 16

[Al(H₂O)₃(OH)₂]⁺

[Al(H₂O)₃(OH)₂O]^-

[Al(H₂O)₃(OH)₃]^-

[Al(H₂O)₂(OH)₄]^-

Quaternary ammonium salts in which nitrogen holds four different groups show optical activity

Aliphatic amines can be prepaed by ammonolysis of alkyl halides but not aromatic amines

Ammonolysis of alkyl halides gives highest yield with tertiary halides

The more stable the substituted ammonium ion relative to the amine from where it is formed, the more basic is the amine

Na₂O < Na₂O₂ < KO₂ < O₂(PtF₆) < OF₂

KO₂ < Na₂O < Na₂O₂ < O₂(PtF₆) < OF₂

O₂(PtF₆) < KO₂ < Na₂O < Na₂O₂ < OF₂

OF₂ < O₂(PtF₆) < KO₂ < Na₂O < Na₂O₂

E₁ > E₂ > E₃

E₃ > E₂ > E₁

E₂ > E₁ > E₃

E₁ = E₂ = E₃

CH₃ — CH₂ —CH₂ —CH₂COOH

CH₂ = CH — CH₂ — CH₂NH₂

CH₂ = CH — CH₂ — CONH₂

CH₃ — CH = CH₂ — NH₂

Viscosity and surface tension both are higher than that of D.M.

Viscosity and surface tension both are lower than that of D.M.

Viscosity and surface tension both are equal to that of D.M.

Viscosity is higher but surface tension is tower than that of D.M.

2

Less than 2

More than 2

Zero

4 : 3

3 : 4

11 : 6

6 : 11

I and II

I, II and III

II, III and IV

All of these

one, square planar

two, square planar

one, tetrahedral

two, tetrahedral

Pb < Sn < Ge

Pb < Ge < Sn

Ge < Sn < Pb

Ge < Pb < Sn

  H₂SO₄ as dehydrating agent

Cu + 2H₂SO₄ → CuSO₄ + 2H₂O + SO₂; H₂SO₄ as oxidising agent

Na₂S + H₂SO₄ → Na₂SO₄ + H₂S;H₂SO₄ as
an acid

2HBr + H₂SO₄ → 2H₂O + SO₂ + Br₂; H₂SO₄ as reducing agent

NaClO

NaClO₂

NaClO₃

NaClO₄

All of these

3-amino-3-oxopropanoic acid

3-amidopropanoic acid

2-amidoethanoic acid

2-carbamoylethanoic acid

Ethane has two conformations, of which staggered is more stable

Ethane has infinite conformations, of which staggered is the most stable

Ethane has infinite conformations, of which eclipsed is the most stable

Ethane has two conformations, of which staggered has the highest energy

3/8

8/3

1

5/8

2.5 x 10^-2 mol L^-1 s^-1

1.5 x 10^-2 mol L^-1 s^-1

1.25 x 10^-2 mol L^-1 s^-1

3.0 mol L^-1 s^-1

O^2- > F^- > Na⁺ > Mg²⁺

Mg²⁺ > Na⁺ > F^- > O^2-

F^- > O^2- > Mg²⁺ > Na⁺

Na⁺ > Mg²⁺ > O^2- > F^-

Fe₂O₃ can be reduced to Fe by CO below 850⁰C

Fe₂O₃ can be reduced to Fe by C above 850⁰C

Both (a) and (b) are correct

Both (a) and (b) are wrong