List of practice Questions

Consider the cell:
\[\text{Pt(s)}|\text{H}_2(g, 1\,\text{atm})|\text{H}^+(aq, 1\,\text{M})||\text{Fe}^{3+}(aq), \text{Fe}^{2+}(aq)||\text{Pt(s)}.\]
When the potential of the cell is 0.712 V at 298 K, the ratio $[\text{Fe}^{2+}]/[\text{Fe}^{3+}]$ is ____ (Nearest integer).

The energy of one mole of photons of radiation of frequency 2 $\times$10¹²H_z in Jmol^-1 is ________ (Nearest integer)

[Given : $h=6.626\times10^{-34}Js$

$N_{A}=6.022\times10^{23}mol^{-1}$]

Given below are two statements:
Statement I : H₂O₂ is used in the synthesis of Cephalosporin
Statement II : H₂O₂ is used for the restoration of aerobic conditions to sewage wastes.
In the light of the above statements, choose the most appropriate answer from the options given below :

Which of the following elements have half-filled f-orbitals in their ground state?
(Given : atomic number $Sm =62 ; Eu =63 ; Tb =65 ; Gd =64, Pm =61$ )
A. $Sm$
B. $Eu$
C. $Tb$
D. $Gd$
E. $Pm$
Choose the correct answer from the options given below :

The normal rain water is slightly acidic and its $pH$ value is $56$ because of which one of the following ?

Which one of the following statements is incorrect?

The element playing significant role in neuromuscular function and interneuronal transmission is :

For $OF _2$ molecule consider the following : A Number of lone pairs on oxygen is 2 B FOF angle is less than $1045^{\circ}$ C Oxidation state of $O$ is $-2$ D Molecule is bent ' $V$ ' shaped E Molecular geometry is linear correct options are:

Lithium aluminium hydride can be prepared from the reaction of

Which of the following compounds would give the following set of qualitative analysis?

Fehling's Test: Positive
Na fusion extract upon treatment with sodium nitroprusside gives a blood-red colour but not prussian blue

Formation of photochemical smog involves the following reaction in which $A , B$ and $C$ are respectively i $NO _2 \xrightarrow{ h\nu } A + B$ ii $B + O _2 \rightarrow C$ iii $A + C \rightarrow NO _2+ O _2$ Choose the correct answer from the options given below:

Amongst the following compounds, which one is an antacid?

Caprolactam when heated at high temperature in presence of water, gives

Which of the following is correct order of ligand field strength?

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A): In expensive scientific instruments, silica gel is kept in watch-glasses or in semipermeable membrane bags
Reason (R): Silica gel adsorbs moisture from air via adsorption, thus protects the instrument from water corrosion (rusting) and / or prevents malfunctioning
In the light of the above statements, choose the correct answer from the options given below :

Match List -I with List-II

LIST-I (Atomic number)	LIST-II (Block of periodic table)
(A) 37 (K)	I. p-block
(B) 78 (Pt)	II. d-block
(C) 52 (Te)	III. f-block
(D) 65 (Tb)	IV. s-block

Choose the correct answer from the options given below:

Boric acid is solid, whereas $BF _3$ is gas at room temperature because of

Graph of X-ray frequency (v)n v/s atomic number (Z) is linear. Find the value of n.

Find correct order of covalent character (A) $KF < KI$ (B) $CuCl > NaCl$ (C) $LiF > KF$

Freezing point of solution is less than that of pure solvent, which of the following statements are correct ?
(A) Vapour pressure of solution is less than that of pure solvent
(B) Vapour pressure of solution is greater than that of pure solvent
(C) Only solvent molecules will freeze
(D) Only solute molecules will freeze

How many reactions are non-spontaneous at 300 K. For independent reaction ΔH & ΔS values are given.

Match the following:

Column-I	Column-II
(A) Zone refining	(P) pig iron
(B) Electrolysis	(Q) Al
(C) Reverberatory furnace	(R) Si
(D) Blast furnace	(S) Cu

Statement-I: Noradrenaline is one of the neurotransmitter.

Statement-II: Low level of noradrenaline is not cause of depression in humans.

In light of the above statements, choose the correct answer from the options given below

$[Co(NH_3)_6]^{3+} \text{is} $ ________$\text{hybridised and}$________

Match List I with List II:

LIST I (Type)	LIST II (Name)
(P) Antifertility drugs	(A) Norethindrone
(Q) Antihistamines	(B) Seldane
(R) Tranquilizers	(C) Meprobamate
(S) Antibiotics	(D) Penicillin

Choose the correct answer from the options given below: