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What is the major product obtained in the following reaction?

1-butyne reacts with cold alkaline KMnO4 to produce

In which of the following molecules, all atoms are coplanar ?

The standard reduction potentials at 298 K for the following half reactions are given against each

?

[IIT 1981; MP PET/PMT 1988; MP PMT 1989;MH CET 2001]

Which of the following is identified by carbyl amine reaction

The possibility of finding an electron in an orbital was conceived by

Which of the following carbonyl oxygens will form the strongest hydrogen bond with $H_{2}O$ molecules?

Two different gases 'A' and 'B' are filled in separate containers of equal capacity under the same conditions of temperature and pressure. On increasing the pressure slightly the gas 'A' liquefies but gas B does not liquify even on applying high pressure until it is cooled. Explain this phenomenon.

Which of the following properties is/are correctly ordered?

Which of the following does not react with water?

In a sad twist you inherit “only” a copper mine while your siblings inherit gold and diamond mines. On inspection you come to know that your copper mine is fully equipped to extract the metal from the ore and also that it consists only of Chalcopyrite. Finely powdered, pulverized ore is ready to be processed. What would be your next step?

The correct order of acid strength for the following carboxylic acids is:

Assuming no carbocation rearrangement to take place, what would be the major product of the reaction given below:

Indol 3 acetic acid is chemically similar to the amino acid

In Birkeland-Eyde process, the raw material used is

The most suitable reagent for the conversion of RCH₂OH → RCHO is:

Molar conductance is used to define as the conducting power of all the ions produced by one mole of the electrolyte in the given solution.
$\Lambda m=\frac{1000\times K}{C}$
Where, K = specific conductance, C = Molar concentration of the solution.
At infinite dilution, each ion makes a definite contribution for the conductance of electrolyte. At infinite dilution, the molar conductance of an electrolyte is the sum of the ionic conductance of constituent ions.
$\Lambda A{B}_m^{\infty }=x{A}_{+}^{\infty }+y{A}_{+}^{\infty }$ where,x and y are the number of cations and anions per formula unit of the electrolyte. By measuring the conductance we can measure degree of dissociation and dissociation constants.
$\alpha =\frac{{\Lambda }^C}{{\Lambda }^{\infty }};K_a=\frac{a^{2}C}{(1-\alpha )};K_b=\frac{{\alpha }^{2}C}{(1-\alpha )}$
By conductance measurements we can calculate the solubility product of a sparingly soluble salt. For a sparingly soluble salt, the saturated solution will be an extremely dilute solution and $A^C$ is taken as $A^{\infty }$. Knowing $A^{\infty }$ (by Kohlrausch’s law) the concentration of saturated solution is calculated from which Ksp is calculated.
The value of ${\Lambda }^C$ for 0.001M aqueous solution of $N{H}_3$ is (in $S{m}^{2}mo{l}^{-2}$)

The product of reaction,

All compounds of alkali metals are easily soluble in water but lithium compounds are more soluble in organic solvents. Explain

What would happen if there was no ozone in the stratosphere?

The reactivity of halogen acid with alkene to form haloalkanes are in the order:

Give four examples of heterogeneous catalysis ?

Which one of the following does not give precipitate with ammoniacal cuprous chloride?

Tautomerism is possible in which of the following.

Tautomerism is not exhibited by :

Incorrect order about bond angle is:

Given,
$C\left(s\right)+O_2\left(g\right)\to C{O}_2\left(g\right)\Delta H=-94.2kcal$
$H_2\left(g\right)+\frac{1}{2}{O}_2\left(g\right)\to H_{2}O\left(l\right)\Delta H=-68.3kcal$
$C{H}_4\left(g\right)+2O_2\left(g\right)\to C{O}_2\left(g\right)+2H_{2}O\left(l\right)\Delta H=-210.8kcal$
The heat of formation of methane in kcal will be :

$A+B\to A_3{B}_2$ (unbalanced) $A_3{B}_2+C\to A_3{B}_2{C}_2$ (unbalanced) Above two reactions are carried out by taking 3 moles each of A and B and by taking one mole of C. Then which option(s) is/are correct?

Why is the radius of oxygen is large than the radius of fluorine? In fluorine, there is more inter- electronic repulsion.

N2 gas is present in one litre flask at a pressure of 7.6* (10power-10)mm of Hg. The number of N2 gas molecules in the flask at 0 degree Celsius is?

Match the following

Suggest a reagent for conversion of ethanol to ethanoic acid.

In the reaction ,BaCO3 to BaO +CO2 where BaCO3 is 9.5g

Here,will the no. of moles CO2 released is equal to the no.of moles of BaCO3??? If yes,how?

The correct order of stability for the following superoxides is

Calculate the molality of 93% sulphuric acid if the density is 1.84 gram/cc

In the carbon family, the elements other than carbon do not form pπ - pπ bonds because the atomic orbitals are:

Ellingham diagrams normally consists of plots of Δ_fG vs T for the formation of