List of practice Questions

Products The two products formed in above reaction are

In the following reaction

A is

A in the above reaction is:

The major products ‘P’ formed in the following sequence of reaction is

Match List I with List II

	List I -Type of Hydride		List II-Example
A	Electron deficient hydride	I	M_gH₂
B	Electron rich hydride	II	HF
C	Electron precise hydride	III	B₂H₆
D	Saline hydride	IV	CH₄

Choose the correct answer from the options given below:

Match List I with List II

	List I -complex		List II-CFSE
A	[Cu(NH₃)₆]²⁺	I	-6.0
B	[Ti(H₂O)₆]³⁺	II	-2.0
C	[Fe(CN)₆]^3-	III	-1.2
D	[NiF₆]^4-	IV	-0.4

Choose the correct answer from the options given below:

Match List I with List II

	List I		List II
A	Nitrogen oxides in air	I	Eutrophication
B	Nitrogen oxides in air	II	Eutrophication
C	Carbon dioxide	III	Global warming
D	Phosphate fertilisers in water	IV	Acid rain

Choose the correct answer from the options given below:

Correct statements for the given reaction are:

A. Compound 'B' is aromatic
B. The completion of above reaction is very slow
C. 'A' shows tautomerism
D. The bond lengths C-C in compound B are found to be same
Choose the correct answer from the options given below

The two products formed in above reaction are

Match List I with List II

	List I-Examples		List II-Type
A	2-Chloro-1, 3-butadiene	I	Nylon 2-nylon 6
B	Nylon 2-nylon 6	II	Synthetic Rubber
C	Polyacrylonitrile	III	Polyester
D	Dacron	IV	Addition Polymer

Choose the correct answer from the options given below:

Number of crystal systems from the following where body centred unit cell can be found, is......
Cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic, triclinic.

The number of species having a square planar shape from the following is __
$XeF_4, SF_4, SiF_4, BF^-_4 BrF^-_4,[Cu(NH_3)_4]^{2+}, [FeCl_4]^{2-}, [PtCl_4]^{2-}$

Consider the following date
Heat of combustion of H₂(g) = -241.8 kJ mol^-1
Heat of combustion of C(s) = -393.5 kJ mol^-1
Heat of combustion of C₂H₅OH(1) = -1234.7 kJ mol^-1
The heat of formation of C₂H₅OH(1) is (-) ____ kJ mol^-1 (Nearest integer)

The standard reduction potential at 298 K for the following half cells are given below
NO − 3 3 − + 4H+ + 3e- → NO(g) +2H2O E0 = 0.97V
$V^{2+} (aq) + 2e^-→V$ E⁰ = -1.19V
$Fe^{3+}(aq) + 3e^- → Fe$ E⁰= -0.04V
$Ag^+ (aq) + e^- → Ag(s)$ E⁰ = 0.80V
$Au^{3+}(aq)+3e^-→Au(s)$ E⁰= 1.40V
The number of metal(s) which will be oxidized by $N0^-_3$ Oin aqueous solution is______.

Among the following, the number of compounds which will give positive iodoform reaction is ____ .
(a) 1-Phenylbutan-2-one
(b) 2-Methylbutan-2-ol
(c) 3-Methylbutan-2-ol
(d) 1-Phenylethanol
(e) 3,3-dimethylbutan-2-one
(f) 1-Phenylpropan-2-ol

25.0 mL of 0.050 M Ba(NO₃)₂ is mixed with 25.0 mL of 0.020 M NaF. K_sp of BaF₂ is 0.5 x 10^-6 at 298 K. The ratio of [Ba2+] [F^-]² and K_spis__ (Nearest integer)

The reaction 2NO + Br2 → 2NOBr
takes places through the mechanism given below :
NO + Br2 ⇔ NOBr2 (fast)
NOBr2 + NO → 2NOBr (slow)
The overall order of the reaction is_____.

At 298 K, the standard reduction potential for Cu²⁺/Cu electrode is 0.34 V.
Given: Ksp Cu(OH)2 = 1 × 10^-20
Take $\frac{2.303RT}{F}$= 0.059V
The reduction potential at pH = 14 for the above couple is (-)x x 10^-2 V.
The value of x is_____.

A(g) → 2B(g) + C(g) is a first order reaction. The initial pressure of the system was found to be 800 mm Hg which increased to 1600 mm Hg after 10 min. The total pressure of the system after 30 min will be ___mm Hg. (Nearest integer)

The number of species from the following which have square pyramidal structure is___
$PF_5, BrF^− _4 4 − , IF_5$ ; $BrF_5, XeOF_4, ICl ^−_ 4$

A hanger is made of two bars of different sizes. Each bar has a square cross-section. The hanger is loaded by three point loads in the mid-vertical plane as shown: the upper bar is $100\, \text{mm}\times100\, \text{mm}$ and the lower bar is $50\, \text{mm}\times50\, \text{mm}$. Ignore self-weight and stress concentration. What is the maximum tensile stress (in N/mm$^2$) anywhere in the hanger?

Creep of concrete under compression is defined as the

Which one of the following statements is TRUE for Greenhouse Gas (GHG) in the atmosphere?

Given $ G_1 $ and $ G_2 $ are the slopes of the approach and departure grades of a vertical curve, respectively.
Given $ |G_1| < |G_2| $ and $ |G_1| \neq |G_2| \neq 0 $, Statement 1: $ +G_1 $ followed by $ +G_2 $ results in a sag vertical curve.
Statement 2: $ -G_1 $ followed by $ -G_2 $ results in a sag vertical curve.
Statement 3: $ +G_1 $ followed by $ -G_2 $ results in a crest vertical curve.
Which option amongst the following is true?

The direct and reversed zenith angles observed by a theodolite are $56^\circ 00' 00''$ and $303^\circ 00' 00''$, respectively. What is the vertical collimation correction?