List of practice Questions

Which of the following oxidation reactions are carried out by both $ K_2Cr_2O_7 $ and $ KMnO_4 $ in acidic medium?
A. $ I^- \rightarrow I_2 $
B. $ S^{2-} \rightarrow S $
C. $ Fe^{2+} \rightarrow Fe^{3+} $
D. $ I^- \rightarrow IO_3^- $
E. $ S_2O_3^{2-} \rightarrow SO_4^{2-} $
Choose the correct answer from the options given below:

Match the LIST-I with LIST-II (Redox Reactions).

Choose the correct answer from the options given below:

Given below are two statements:

Statement (I): The first ionization energy of Pb is greater than that of Sn.
Statement (II): The first ionization energy of Ge is greater than that of Si.

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

The heat of formation of $ \text{SO}_2(g) $ is given by: $$ S(g) + \frac{3}{2} O_2(g) \rightarrow SO_3(g) + 2x \, \text{kcal} $$ $$ SO_2(g) + \frac{1}{2} O_2(g) \rightarrow SO_3(g) + y \, \text{kcal} $$

The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidizing capacity.

$\mathrm{KMnO}_{4}$ acts as an oxidising agent in acidic medium. ' X ' is the difference between the oxidation states of Mn in reactant and product. ' Y ' is the number of ' d ' electrons present in the brown red precipitate formed at the end of the acetate ion test with neutral ferric chloride. The value of $\mathrm{X}+\mathrm{Y}$ is _______ .

Two long solenoids of radii $ r_1 $ and $ r_2 $ ($ > r_1 $) and number of turns per unit length $ n_1 $ and $ n_2 $ respectively are co-axially wrapped one over the other. The ratio of self-inductance of inner solenoid to their mutual inductance is:

If the protons and electrons are the only basic charges in the universe, all the observable charges have to be integral multiples of e. Thus, if an object contains x electrons and y protons, the net charge on the object will be

आप अदिति / आदित्य हैं। आपकी दादीजी को खेलों में अत्यधिक रुचि है। ओलंपिक खेल-2024 में भारत के प्रदर्शन के बारे में जानकारी देते हुए लगभग 100 शब्दों में पत्र लिखिए।

The species which does not undergo disproportionation reaction is:

For a reaction, $$ {N}_2{O}_5(g) \rightarrow 2{NO}_2(g) + \frac{1}{2} {O}_2(g) $$ in a constant volume container, no products were present initially. The final pressure of the system when 50% of the reaction gets completed is:

In Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl. The percentage composition of chlorine in the compound is ___________%. [Given: Molar mass in g mol$^{-1}$ of Ag = 108, Cl = 35.5]

Identify A, B, and C in the given reaction sequence: \[ \text{A} \xrightarrow{\text{HNO}_3} \text{Pb(NO}_3)_2 \xrightarrow{\text{H}_2\text{SO}_4} \text{B} \rightarrow \text{C (Yellow ppt)}. \]

Given below are two statements: Statement (I): The boiling points of alcohols and phenols increase with increase in the number of C-atoms.
Statement (II): The boiling points of alcohols and phenols are higher in comparison to other classes of compounds such as ethers and haloalkanes. In the light of the above statements, choose the correct answer from the options given below:

Consider the following statements (P) and (Q):
(P): Fly ash and ground granulated blast furnace slag can be used as mineral admixtures in concrete.
(Q): As per IS 456:2000, the minimum moist curing period becomes higher when a mineral admixture is added to concrete.
Identify the CORRECT option from choices given below.

Consider the pin-jointed truss shown in the figure. Influence line is drawn for the axial force in the member G-I, when a unit load travels on the bottom chord of the truss.
Identify the CORRECT influence line from the following options:
Note: Positive value corresponds to tension and negative value corresponds to compression in the member.

The most suitable test for measuring the permeability of clayey soils in the laboratory is ___________.

A hydraulic jump occurs in an open channel when the slope of the channel changes from ___________.

The bacteria mainly responsible for crown corrosion in a sewer is ___________.

The recommended minimum traffic growth rate and design period considered for structural design of flexible pavements for national highways in India as per IRC 37:2018 is __________ percentage and _________ years, respectively.

After applying the correction for elevation and temperature, the runway length is 700 m.
The corrected runway length (in m) for an effective gradient of 1% is __________ (round off to the nearest integer).

The point where the road alignment changes from a tangent to a curve is known as ___________.

Consider a velocity vector, $ \vec{V} $ in (x, y, z) coordinates given below. Pick one or more
CORRECT statement(s) from the choices given below:
\[ \vec{V} = u\hat{i} + v\hat{j} \]

Given that A and B are not null sets, which of the following statements regarding probability is/are CORRECT?

In the context of construction materials, which of the following statements is/are CORRECT?