Chemistry EXEMPLAR based FST #1

1.

Mark the correct order of decreasing acid strength of the following compounds.

(I)		(II)
(III)		(IV)
(V)

1. (V) > (IV) > (II) > (I) > (III)
2. (II) > (IV) > (III) > (I) > (V)
3. (IV) > (V) > (III) > (II) > (I)
4. (V) > (IV) > (III) > (II) > (I)

2.

Match the starting material in Column I with the products formed (Column II) in the reaction with HI.

	Column I		Column II
A.		1.
B.		2.
C.		3.
D.		4.
		5.

	A	B	C	D
1.	2	3	4	1
2.	3	1	5	2
3.	5	4	3	2
4.	4	5	2	1

3.

Carbonyl compound is treated with--- in Clemmensen reduction .
1. Zinc amalgam + HCl
2. Sodium amalgam + HCl
3. Zinc amalgam + nitric acid
4. Sodium amalgam + ${HNO}_{3}$

4.

Match the example in Column I with the name of the reaction in Column II.

Column l (Example)	Column ll (Reaction)
A.	1. Friedel-Crafts acylation
B.	2. HVZ reaction
C.	3. Aldol condensation
D.	4. Rosenmund Reaction

	A	B	C	D
1.	2	3	4	1
2.	3	1	4	2
3.	3	4	1	2
4.	4	1	3	2

5.

The compound below is treated with a concentrated aqueous KOH solution. The products obtained are:

1.
2.
3.
4.

6.

Which of the following polymer is stored in the liver of animals?

1.	Amylose	2.	Cellulose
3.	Amylopectin	4.	Glycogen

7.

Reduction of aromatic nitro compounds using Fe and HCl gives:
1. Aromatic oxime
2. Aromatic hydrocarbon
3. Aniline
4. Aromatic amide

8.

Carbon atoms of pentose sugars of nucleotides having phosphodiester linkage are:
1. 5' and 3'
2. 2' and 5'
3. 5' and 5'
4. '3 and 3'

9.

Hofmann bromamide degradation reaction is shown by:

1	PhNH₂	2.	PhCONH₂
3.	PhNO₂	4.	PhCH₂NH₂

10.

Match the shape of molecules in Column I with the type of hybridization in Column II.

	Column I		Column II
A.	Tetrahedral	1.	sp²
B.	Trigonal	2.	sp
C.	Linear	3.	sp³

Codes:

Options:	A	B	C
1.	3	1	2
2.	1	2	3
3.	5	4	3
4.	4	5	3

11.

The role of a catalyst is to change:

1.	Gibbs energy of the reaction
2.	Enthalpy of reaction
3.	The activation energy of the reaction
4.	Equilibrium constant

12.

Match the items given in Column I with examples given in Column II.

	Column I		Column II
A.	Hydrogen bond	1.	C
B.	Resonance	2.	LiF
C.	Ionic solid	3.	H₂
D.	Covalent solid	4.	HF
		5.	O₃

Codes:

Options:	A	B	C	D
1.	2	3	4	1
2.	1	2	3	5
3.	5	4	3	2
4.	4	5	2	1

13. Match the statements in Column I and Column II :

Column I (Thermodynamic/Kinetic Principle)		Column II (Impact on Reaction Dynamics)
A.	Catalyst alters the rate of reaction	1.	Proper orientation is not always there
B.	$e^{- E_{a} / RT}$	2.	By lowering the activation energy
C.	Energetically favorable reactions are sometimes slow	3.	Total probability is one
D.	The area under the Maxwell-Boltzmann curve is constant	4.	Refers to the fraction of molecules with energy equal to or greater than the activation energy

Codes:

	A	B	C	D
1.	2	4	1	3
2.	3	1	4	2
3.	1	4	3	2
4.	3	4	1	2

14.

The electronic configurations of the elements A, B, and C are given below.
$A = 1 s^{2} 2 s^{2} 2 p^{6}$
$B = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{3}$
$C = 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{5}$
The stable form of A may be represented by the formula:

1.	A	2.	A₂
3.	A₃	4.	A₄

15.

Which of the following species have the same shape?

(a)	CO₂	(b)	CCl₄
(c)	O₃	(d)	NO₂^–

Choose the correct option
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)

16.

The correct order of size of the given species is:

1.	I > I^–> I⁺	2.	I⁺> I^–> I
3.	I > I⁺> I^–	4.	I^–> I > I⁺

17.

The order of screening effect of electrons of s, p, d and f orbitals of a given shell of an atom on electrons in its outer shell is :
1. s > p > d > f
2. f > d > p > s
3. p < d < f < s
4. f > p > s > d

18.

Among the following, the elements that can show covalency greater than 4 is/are:
(a) Be
(b) P
(c) S
(d) B
Choose the correct option
1. (a), (d)
2. (b), (c)
3. (c), (d)
4. (b), (d)

19. Among the following elements whose atomic numbers are given below, which cannot be accommodated in the present set up of the long periodic table?
1. 107
2. 118
3. 126
4. 102

20.

Which of the following species is not expected to be a ligand?
1. NO
2. NH $_{4}^{+}$
3. ${NH}_{2} {CH}_{2} {CH}_{2} {NH}_{2}$
4. CO

21.

Match the coordination given in Column-I with the central metal atoms given in Column-II and assign the correct code.

	Column-I (Coordination compound)		Column-II (Central metal atom)
A.	Chlorophyll	(i)	Rhodium
B.	Blood pigment	(ii)	Cobalt
C.	Wilkinson's catalyst	(iii)	Magnesium
D.	Vitamin B₁₂	(iv)	Iron

Codes:

	A	B	C	D
1.	(ii)	(iii)	(iv)	(i)
2.	(iii)	(iv)	(i)	(ii)
3.	(i)	(iv)	(iii)	(ii)
4.	(iv)	(i)	(iii)	(ii)

22.

Match the following species with the corresponding conjugate acid:

Species	Conjugate acid
A. $N H_{3}$	1. $C O_{3}^{2 -}$
B. $H C O_{3}^{-}$	2. $N H_{4}^{+}$
C. $H_{2} O$	3. $H_{3} O^{+}$
D. $H S O_{4}^{-}$	4. $H_{2} C O_{3}$
	5. $H_{2} S O_{4}$

Codes

	A	B	C	D
1.	2	5	1	5
2.	2	4	3	5
3.	5	4	3	2
4.	4	5	3	2

23.

Which of the following complexes is/are heteroleptic?

(a)	$\mathrm{[Co(NH}_{3})_6{ }]^{3+}$	(b)	$\mathrm[{Fe}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]^{+}$
(c)	$\operatorname[{Mn}(\mathrm{CN})_6]^{4-}$	(d)	$[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]$

Choose the correct option:

1.	(a, b)	2.	(b, c)
3.	(c, d)	4.	(b, d)

24.

Match the items of Column I and Column II.

Column I

Column II

A. $κ$

B. $Λ_{m}$

C. $α$

D. Q

1. I x t

2. $Λ_{m} / Λ_{m}^{0}$

3. $\frac{κ}{C}$

4. $\frac{G *}{R}$

Codes:

Options:	A	B	C	D
1.	2	3	4	1
2.	1	2	3	5
3.	5	4	3	2
4.	4	3	2	1

25.

Which of the following complex is/are homoleptic:

a.	$ {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}} $	b.	$ {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right]^{2+}} $
c.	$ {\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}}$	d.	$\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]$

Choose the correct option.
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

26.

Given below are two statements:

Assertion (A):	A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of pH on the addition of small amounts of acid or alkali.
Reason (R):	A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution.

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.

27.

PCl₅, PCl₃, and Cl₂ are at equilibrium at 500 K in a closed container and their concentrations are 0.8×10^–3 mol L^–1 , 1.2×10^–3 mol L^–1and 1.2×10^–3 mol L^–1, respectively.
The value of K_c for the reaction PCl₅(g) ⇌ PCl₃(g) + Cl₂(g) will be:
1. 1.8 × 10³ mol L^–1
2. 1.8 × 10³
3. 1.8 × 10^–3mol L^–1
4. 0.55 × 10⁴

28.

Using the data given below find out the strongest reducing agent.
$\begin{array}{l} E_{{Cr}_{2} O_{7}^{2 -} / {Cr}^{3 +}}^{⊝} = 1.33 V; E_{{Cl}_{2} / {Cl}^{-}}^{⊖} = 1.36 V \\ E_{Mn 0_{4}^{-} / {Mn}^{2 +}}^{⊝} = 1.51 V; E_{{Cr}^{3 +} / Cr}^{⊖} = - 0.74 V \end{array}$
1. Cl^-
2. Cr
3. Cr³⁺
4. Mn²⁺

29.

Match Compound/element in Column-I with uses in Column-II and select the best match from the codes given:

	Column-I (Compound/element)		Column-II (Uses)
A.	Lanthanoid oxide	I.	Petroleum cracking
B.	Lanthanoid	II.	Television screen
C.	Mischmetal	III.	Lanthanoid metal + iron
D.	Mixed oxides of lanthanoids are employed	IV.	Production of iron alloy

Options:	A	B	C	D
1.	II	I	IV	III
2.	I	II	III	IV
3.	II	IV	III	I
4.	IV	I	III	II

30.

Which of the following reactions are disproportionation reactions?
$\left(\right. i \left.\right) C u^{+} \rightarrow C u^{2 +} + C u$
$\left(\right. i i \left.\right) 3 M n O_{4}^{-} + 4 H^{+} \rightarrow 2 M n O_{4}^{-} + M n O_{2} + 2 H_{2} O$
$\left(\right. i i i \left.\right) 2 K M n O_{4} \rightarrow K_{2} M n O_{4} + M n O_{2} + O_{2}$
$\left(\right. i v \left.\right) 2 M n O_{4}^{-} + 3 M n^{2 +} + 2 H_{2} O \rightarrow 5 M n O_{2} + 4 H^{+}$
1. (i)
2. (i) , (ii) and (iii)
3. (ii) , (iii) and (iv)
4. (i) and (iv)

31.

Match the solutions given in Column I with the colours given in Column II.

	Column I (Aqueous solution of salt)		Column II (Colour)
A.	FeSO₄ .7H₂O	1.	Green
B.	NiCl₂. 4H₂O	2.	Light pink
C.	MnCl₂.4H₂O	3.	Blue
D.	CoCl₂. 6H₂O	4.	Pale green
		5.	Pink

Codes:

	A	B	C	D
1.	2	3	4	1
2.	1	2	3	5
3.	5	4	3	2
4.	4	1	2	5

32.

Assertion (A):	Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason (R):	Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.

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 not True but (R) is True.
4.	Both (A) and (R) are False.

33.

Product ‘A’ in the following reaction is:

1.		2.
3.		4.

34.

Select the correct option based on statements below:

Assertion (A):	In monohaloarenes, further electrophilic substitution occurs at ortho and para positions.
Reason (R):	The halogen atom is a ring deactivator.

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.

35.

Select the correct option based on statements below:

Assertion (A):	Hydrolysis of (-)-2-bromooctane proceeds with an inversion of configuration.
Reason (R):	This reaction proceeds through the formation of a carbocation.

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.

36.

The correct increasing order of tendency for catenation among group 14 elements?
1.   $C > Si > Ge > Sn$
2.   $C > > Si > Ge \approx Sn$
3.   $Si > C > Sn > Ge$
4.   $Ge > Sn > Si > C$

37.

Match the compounds given in Column I with the hybridisation and shape given in Column II and mark the correct option.

Column I		Column II
A	XeF₆	1.	sp³d³ distorted octahedral
B.	XeO₃	2.	sp³d² square planar
C.	XeOF₄	3.	sp³ pyramidal
D.	XeF₄	4.	sp³d² square pyramidal

Codes:

Options:	A	B	C	D
1.	1	3	4	2
2.	1	2	4	3
3.	4	3	1	2
4.	4	1	2	3

38.

The molecules having dipole moment are ________
a. 2,2-Dimethylpropane
b. trans-Pent-2-ene
c. cis-Hex-3-ene
d. 2,2,3,3 - Tetramethylbutane
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

39.

The correct IUPAC name of the following alkane is:

1. 3,6-Diethyl-2-methyloctane
2. 5-Isopropyl-3-ethyloctane
3. 3-Ethyl-5-isopropyloctane
4. 3-Isopropyl-6-ethyloctane

40. Given below are two statements:

Assertion (A):	Sulphur present in an organic compound can be estimated quantitatively by the Carius method.
Reason (R):	Sulphur is separated easily from other atoms in the molecule and gets precipitated as a light yellow solid.

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.

41.

In which of the following representations given below spatial arrangement of group/atom is different from that given in structure 'A'?

a.		b.
c.		d.

Choose the correct option
1. (a, b, c)
2. (b, c, d)
3. (a,c,d)
4. (a, d, b)

42.

Select the correct option based on statements below:

Assertion (A):	When methyl alcohol is added to water, boiling point of water increases.
Reason (R):	When a volatile solute is added to a volatile solvent, elevation in boiling point is observed.

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.	Both (A) and (R) are False.

43. Given below are two statements:

Assertion (A):	Among halogens, fluorine is the best oxidant.
Reason (R):	Fluorine is the most electronegative atom.

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.

44.

Three aqueous solutions of NaCl are labelled as ‘A', ‘B’ and ‘C with concentrations 0.1 M, 0.01 M and 0.001 M, respectively. The value of van’t Hoff factor for these solutions will be in the order of :
1. i_A < i_B < i_C
2. i_A > i_B > i_C
3. i_A = i_B = i_C
4. i_A < i_B > i_C

45.

16 g of oxygen has the same number of molecules as in:
(a) 16 g of CO
(b) 28 g of N₂
(c) 14 g of N₂
(d) 1.0 g of H₂
1. (a), (b)
2. (b), (c)
3. (c), (d)
4. (b), (d)

46.

For the electrons of an oxygen atom. The correct statement among the following is :

1.	Z_eff for an electron in a 2s orbital is the same as Z_eff for an electron in a 2p orbital.
2.	An electron in the 2s orbital has the same energy as an electron in the 2p orbital.
3.	Z_eff for an electron in 1s orbital is the same as Z_eff for an electron in a 2s orbital
4.	The two electrons present in the 2s orbital have same spin quantum numbers m_s but of opposite sign

47. The number of molecules of H₂SO₄ present in 100 mL of 0.02 M H₂SO₄ solution are:

1. $12.044 \times 10^{20}$ molecules
2. $6.022 \times 10^{23}$ molecules
3. $1 \times 10^{23}$ molecules
4. $12.044 \times 10^{23}$ molecules

48.

Identify the matter waves with the shortest wavelength when traveling at the same speeds :

1.	Electron	2.	Alpha particle (He²⁺)
3.	Neutron	4.	Proton

49. Select the correct option based on statements below:

Assertion (A):	Spontaneous process is an irreversible process and may be reversed by some external agency.
Reason (R):	A decrease in enthalpy is a contributing factor to spontaneity.

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.

50.

Thermodynamics primarily focuses on:

(a)	Interrelation of various forms of energy and their transformation from one form to another.
(b)	Energy changes in the processes depend only on the initial and final states of the microscopic systems containing a few molecules.
(c)	The mechanisms and rates at which these energy transformations occur.
(d)	Whether a system is in an equilibrium state or transitioning between one equilibrium state and another.

The correct statements among the above are:
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (d)

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(a)	\(\mathrm{[Co(NH}_{3})_6{ }]^{3+}\)	(b)	\(\mathrm[{Fe}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]^{+}\)
(c)	\(\operatorname[{Mn}(\mathrm{CN})_6]^{4-}\)	(d)	\([\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2]\)

a.	\( {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}} \)	b.	\( {\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right]^{2+}} \)
c.	\( {\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}}\)	d.	\(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\)

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