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The reaction that does NOT take place in a blast furnace between 900 K to 1500 K temperature range during extraction of iron is :
Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication leads to decrease in the level of oxygen in the water bodies. In the light of the above statements, choose the correct answer from the options given below:
Which amongst the following will be most readily dehydrated under acidic conditions?
Identify the final product [D] obtained in the following sequence of reactions. $CH_3CHO \xrightarrow[ii) H_3O^+]{i) LiAlH_4} [A] \xrightarrow{H_2SO_4, \Delta} [B] \xrightarrow{HBr} [C] \xrightarrow{Na/dry ether} [D]$
Identify the major product obtained in the following reaction: $o-phthalaldehyde + 2[Ag(NH_3)_2]^+ + 3OH^- \xrightarrow{\Delta} \text{major product}$
Consider the following reaction : $\text{C}_6\text{H}_5-\text{CH}_2-\text{O}-\text{C}_6\text{H}_5 \xrightarrow{\text{HI}, \Delta} \text{A} + \text{B}$. Identify products A and B.
Which of the following $P-V$ curve represents maximum work done?
The IUPAC name of an element with atomic number 119 is
Match List -I with List -II. List -I (Hydrides) (a) $H_2O$ (b) $PH_3$ (c) $CH_4$ (d) $HF$ List -II (Nature) (i) Amphoteric nature (ii) Amphoteric nature (iii) Amphoteric nature (iv) Acidic
Match List -I with List -II. List -I (Drug class): (a) Antacids, (b) Antihistamines, (c) Analgesics, (d) Antimicrobials. List -II (Drug molecule): (i) Salvarsan, (ii) Morphine, (iii) Cimetidine, (iv) Seldane. Choose the correct answer from the options given below:
Which of the following statement is not correct about diborane?
Which compound amongst the following is not an aromatic compound?
The IUPAC name of the complex $[Ag(H_2O)_2][Ag(CN)_2]$ is:
Amongst the following molecules, which one has a linear shape?
Given below are two statements : Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole-dipole interactions. Statement II : The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding. In the light of the above statements, choose the most appropriate answer from the given below
The given graph is a representation of kinetics of a reaction. The y and x axes for zero and first order reactions, respectively are
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells. Reason (R): In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality. In the light of the above statements, choose the most appropriate answer from the options given below:
Which of the following sequence of reactions is suitable to synthesize chlorobenzene?
Identify the incorrect statement from the following. (1) All the five $5d$ orbitals are different in size when compared to the respective $4d$ orbitals. (2) All the five $4d$ orbitals have shapes similar to the respective $3d$ orbitals. (3) In an atom, all the five $3d$ orbitals are equal in energy in free state. The shapes of $d_{xy}$, $d_{yz}$ and $d_{zx}$ orbitals are similar to each other; and $d_{x^2-y^2}$ and $d_{z^2}$ are similar to each other.
Given below are two statements: Statement I: The boiling points of the following hydrides of group 16 elements increases in the order $H_2O