Thin layer chromatography of a mixture shows the following observation: The correct order of elution in the silica gel column chromatography is

The decreasing order of hydride affinity for following carbocations is: Choose the correct answer from the options given below:

Using column chromatography, mixture of two compounds 'A' and 'B' was separated. 'A' eluted first, this indicates 'B' has

The correct IUPAC nomenclature for the following compound is:

The descending order of acidity for the following carboxylic acid is- A. $${\mathrm{CH}}_3\mathrm{COOH}$$ B. $${\mathrm{F}}_3\mathrm{C}-\mathrm{COOH}$$ C. $${\mathrm{ClCH}}_2-\mathrm{COOH}$$ D. $${\mathrm{FCH}}_2-\mathrm{COOH}$$ E. $${\mathrm{BrCH}}_2-\mathrm{COOH}$$ Choose the correct answer from the options given below:

From the figure of column chromatography given below, identify incorrect statements. A. Compound 'c' is more polar than 'a' and 'b' B. Compound '$$\mathrm{a}$$' is least polar C. Compound 'b' comes out of the column before 'c' and after 'a' D. Compound 'a' spends more time in the column Choose the correct answer from the options given below:

Which of the following relations are correct? (A) $$\mathrm{\Delta U}=\mathrm{q}+\mathrm{p\Delta V}$$ (B) $$\mathrm{\Delta G}=\mathrm{\Delta H}-\mathrm{T\Delta S}$$ (C) $$\Delta \mathrm{S}=\frac{q_{rev}}{T}$$ (D) $$\mathrm{\Delta H}=\mathrm{\Delta U}-\mathrm{\Delta nRT}$$ Choose the most appropriate answer from the options given below :

What happens when methane undergoes combustion in systems A and B respectively?

Given .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-baqh{text-align:center;vertical-align:top} .tg .tg-0lax{text-align:left;vertical-align:top} (A) $$2CO(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})\to 2C{\mathrm{O}}_2(\mathrm{g})$$ $$\mathrm{\Delta }{\mathrm{H}}_1^0=-\mathrm{x}\mathrm{kJ}\mathrm{mo}{\mathrm{l}}^{-1}$$ (B) $$\mathrm{C}(\mathrm{graphite})+{\mathrm{O}}_2(\mathrm{g})\to \mathrm{C}{\mathrm{O}}_2(\mathrm{g})$$ $$\mathrm{\Delta }{\mathrm{H}}_2^0=-\mathrm{y}\mathrm{kJ}\mathrm{mo}{\mathrm{l}}^{-1}$$ $$\mathrm{\Delta }{\mathrm{H}}^0$$ for the reaction $$\mathrm{C}(\mathrm{graphite})+\frac{1}{2}{\mathrm{O}}_2(\mathrm{g})\to \mathrm{CO}(\mathrm{g})$$ is :

In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group IV in qualitative inorganic analysis?

Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List I Elements List II Colour imparted to the flame A. K I. Brick Red B. Ca II. Violet C. Sr III. Apple Green D. Ba IV. Crimson Red Choose the correct answer from the options given below :

Match the List-I with List-II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} List-I Cations List-II Group reagents A. $$\mathrm{P}{\mathrm{b}}^{2+},\mathrm{C}{\mathrm{u}}^{2+}$$ i) $${\mathrm{H}}_2\mathrm{S}$$ gas in presence of dilute HCl B. $$\mathrm{A}{\mathrm{l}}^{3+},\mathrm{F}{\mathrm{e}}^{3+}$$ ii) $$(\mathrm{N}{\mathrm{H}}_4{)}_2\mathrm{C}{\mathrm{O}}_3$$ in presence of $$\mathrm{N}{\mathrm{H}}_4\mathrm{OH}$$ C. $$\mathrm{C}{\mathrm{o}}^{2+},\mathrm{N}{\mathrm{i}}^{2+}$$ iii) $$\mathrm{N}{\mathrm{H}}_4\mathrm{OH}$$ in presence of $$\mathrm{N}{\mathrm{H}}_4\mathrm{Cl}$$ D. $$\mathrm{B}{\mathrm{a}}^{2+},\mathrm{C}{\mathrm{a}}^{2+}$$ iv) H2S in presence of NH4OH Correct match is -

In the wet tests for detection of various cations by precipitation, $${\mathrm{Ba}}^{2+}$$ cations are detected by obtaining precipitate of

When a solution of mixture having two inorganic salts was treated with freshly prepared ferrous sulphate in acidic medium, a dark brown ring was formed whereas on treatment with neutral $${\mathrm{FeCl}}_3$$, it gave deep red colour which disppeared on boiling and a brown red ppt was formed. The mixture contains :

Formation of which complex, among the following, is not a confirmatory test of $${\mathrm{Pb}}^{2+}$$ ions :

In a reaction, reagents 'X' and 'Y' respectively are :

The structures of major products A, B and C in the following reaction are sequence.

Cyclohexylamine when treated with nitrous acid yields $(\mathrm{P})$. On treating $(\mathrm{P})$ with $\mathrm{PCC}$ results in (Q). When $(\mathrm{Q})$ is heated with dil. $\mathrm{NaOH}$ we get $(\mathrm{R})$ The final product (R) is :

Consider the following reaction The correct statement for product B is. It is

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: can be easily reduced using $\mathrm{Zn}-\mathrm{Hg}/\mathrm{HCl}$ to Reason $\mathrm{R}:\mathrm{Zn}-\mathrm{Hg}/\mathrm{HCl}$ is used to reduce carbonyl group to $-{\mathrm{CH}}_2-$ group. In the light of the above statements, choose the correct answer from the options given below: