Chemistry Test-3

Question 1
4 / -1

In a \(13L\) vessel initially, the following reaction occurs:
\(C(s)+S 2(g) \Rightarrow C S,(g)\) by \(12 g C, 64 g S 2,76\) \(\mathrm{g} \mathrm{CS} 2\), at \(1027^{\circ} \mathrm{C}\) temperature then total pressure is -

A
\(200 R\)

B

\(158 R\)

C

\(100 R\)

D

\(79 R\)

Question 2
4 / -1

In acid medium, the standard reduction potential of \(N O\) converted to \(\mathrm{N}_{2} \mathrm{O}\) is \(1.59 \mathrm{~V}\). Its standard potential in alkaline medium would be:

A
\(-1.59 V\)

B
\(-0.764 V\)

C
\(0.764 V\)

D
\(0.062 V\)

Question 3

4 / -1

Match the Column I and Column II and choose the correct code given below.

Column I	Column II
(A) Peroxyacetyl nitrile	(i) Waste incineration
(B) Indigo	(ii) Vat dye
(C) IR active molecules	(iii) Global warming
(D) Dioxins	(iv) Photochemical smog

A-(iv), B-(ii), C-(iii), D-(i)

A-(i), B-(ii), C-(iv), D-(iii)

A-(ii), B-(i), C-(iv), D-(iii)

A-(iv), B-(i), C-(iii), D-(ii)

Question 4
4 / -1

In a reaction \(2 \mathrm{~A} \rightarrow\) products, the concentration of \(\mathrm{A}\) decreases from \(0.5 \mathrm{ml} \mathrm{L}^{-1}\) to \(0.4 \mathrm{~mol} \mathrm{~L}^{-1}\) in 10 minutes. Calculate the rate during this interval:

A
\(5 \times 10^{3}\)

B
\(4 \times 10^{5}\)

C
\(7 \times 10^{3}\)

D
\(7 \times 10^{3}\)

Question 5
4 / -1

Which of the following statement is always correct?

A
An atom has equal number of electrons and protons.

B
An atom has equal number of electrons and neutrons.

C
An atom has equal number of protons and neutrons.

D
An atom has equal number of electrons protons and neutrons.

Question 6
4 / -1

The conversion of atomic hydrogen into ordinary hydrogen is:

A
Exothermic reaction

B
Endothermic reaction

C
Nuclear change

D
Photochemical change

Question 7
4 / -1

Following reactions are taking place in a Galvanic cell,
\(Z n \rightarrow Z n^{2+}+2 e^{-} ; A g^{+}+e^{-} \rightarrow A g\)
Which of the given representations is the correct method of depicting the cell?

A

\(Z n_{(s)}|Z n_{(a q)}^{2+} \| A g_{(a q)}^{+}| A g_{(s)}\)

B

\(Z n^{2+}|Z n \| A g| A g^{+}\)

C

\(Z n_{(a q)}|Z n_{(s)}^{2+} \| A g_{(s)}^{+}| A g_{(a q)}\)

D

\(Z n_{(s)}|A g_{(a q)}^{+} \| Z n_{(a q)}^{2+}| A g_{(s)}\)

Question 8
4 / -1

Determine the empirical formula of an oxide of iron which has \(69.9 \%\) iron and \(30.1 \%\) dioxygen by mass.

A
\({Fe}_{2} {O}_{3}\)

B
\({Fe}_{3} {O}_{2}\)

C
\({Fe}_{3} {O}_{4}\)

D
None of these

Question 9
4 / -1

The substance not likely to contain CaCO₃ is:

A
Calcined gypsum

B
Sea shells

C
Dolomite

D
A marble statue

Question 10
4 / -1

Among the following mixtures, dipole-dipole as the major interaction is present in:

A
Benzene and ethanol

B
Acetonitrile and acetone

C
KCl and water

D
Benzene and carbon tetrachloride

Question 11
4 / -1

A carbocation will NOT show one of the following properties, Choose that.

A
Accept an electron to give a carbene

B
Eliminatea proton to afford an alkene

C
Combine with a negative ion

D
Abstract a hydride ion to form an alkane

Question 12

4 / -1

Match List - I with List - II and select the correct answer by using the codes given below the list:

List – I (Petroleum fraction)		List – II (Composition)
(a)	Gasoline	(i)	C8 to C16
(b)	Kerosine	(ii)	C4 to C9
(c)	Heavy oil	(iii)	C10 to C18
(d)	Diesel	(iv)	C16 to C30

(a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)

(a) - (ii), (b) - (i), (c) - (iii), (d) - (iv)

(a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)

(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)

Question 13
4 / -1

For the process to occur under adiabatic conditions, the correct conditionis:

A
\(\mathrm{\Delta T=0}\)

B
\(\mathrm{\Delta p=0}\)

C
\(\mathrm{q=0}\)

D
\(\mathrm{w=0}\)

Question 14
4 / -1

What is the atomic number of element of period 3 and group 17 of the Periodic Table?

A
10

B
04

C
17

D
21

Question 15
4 / -1

At a particular temperature, the vapour pressures of two liquids A and B are 120 mm and 180 mm of mercury respectively. If 2 moles of A and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be: (in mm of mercury)

A
156

B
145

C
150

D
108

Submit Test

Chemistry Test-...

Question 1

\(200 R\)

\(158 R\)

\(100 R\)

\(79 R\)

Question 2

\(-1.59 V\)

\(-0.764 V\)

\(0.764 V\)

\(0.062 V\)

Question 3

A-(iv), B-(ii), C-(iii), D-(i)

A-(i), B-(ii), C-(iv), D-(iii)

A-(ii), B-(i), C-(iv), D-(iii)

A-(iv), B-(i), C-(iii), D-(ii)

Question 4

\(5 \times 10^{3}\)

\(4 \times 10^{5}\)

\(7 \times 10^{3}\)

\(7 \times 10^{3}\)

Question 5

An atom has equal number of electrons and protons.

An atom has equal number of electrons and neutrons.

An atom has equal number of protons and neutrons.

An atom has equal number of electrons protons and neutrons.

Question 6

Exothermic reaction

Endothermic reaction

Nuclear change

Photochemical change

Question 7

\(Z n_{(s)}|Z n_{(a q)}^{2+} \| A g_{(a q)}^{+}| A g_{(s)}\)

\(Z n^{2+}|Z n \| A g| A g^{+}\)

\(Z n_{(a q)}|Z n_{(s)}^{2+} \| A g_{(s)}^{+}| A g_{(a q)}\)

\(Z n_{(s)}|A g_{(a q)}^{+} \| Z n_{(a q)}^{2+}| A g_{(s)}\)

Question 8

\({Fe}_{2} {O}_{3}\)

\({Fe}_{3} {O}_{2}\)

\({Fe}_{3} {O}_{4}\)

None of these

Question 9

Calcined gypsum

Sea shells

Dolomite

A marble statue

Question 10

Benzene and ethanol

Acetonitrile and acetone

KCl and water

Benzene and carbon tetrachloride

Question 11

Accept an electron to give a carbene

Eliminatea proton to afford an alkene

Combine with a negative ion

Abstract a hydride ion to form an alkane

Question 12

(a) - (i), (b) - (ii), (c) - (iv), (d) - (iii)

(a) - (ii), (b) - (i), (c) - (iii), (d) - (iv)

(a) - (ii), (b) - (i), (c) - (iv), (d) - (iii)

(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)

Question 13

\(\mathrm{\Delta T=0}\)

\(\mathrm{\Delta p=0}\)

\(\mathrm{q=0}\)

\(\mathrm{w=0}\)

Question 14

10

04

17

21

Question 15

156

145

150

108

User

Question Analysis

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.