The mixture of compounds A and B is passed through a column of `Al_2O_3` by using alcohol as eluant . Compound A is eluted in preference to compound B. Which of the compounds A or B, is more readily adsorbed on the column?

In the chemical reaction, The compounds (A) and (B) are respectively :

In the chemical reaction, The compounds (A) and (B) are respectively :

Compound ‘A’ with molecular formula C_4H_9Br is treated with aq. KOH solution. The rate of this reaction depends upon the concentration of the compound ‘A’ only. When another optically active isomer ‘B' of this compound was treated with aq. KOH solution, the rate of reaction was found to be dependent on concentration of compound and KOH both. Out of these two compounds, which one will be converted to the product with inverted configuration.

In a mixture, A and B compounds show negative deviation as

Vitamin B_12 is a complex compound of ____

In nature, metal A is found in free state while state metal B is found in the form of its compounds. Which of these two metals will be near the top of the reactivity series?

A mixed oxide of iron and chromium, FeO.Cr_2O_3 is fused with sodium carbonate in the presence of air to form a yellow compound (A). On acidification, the compound (A) forms an orange coloured compound (B) which is a strong oxidising agent. Identify the compounds (A) and (B) .

A mixed oxide of iron and chromium, FeO.Cr_2O_3 is fused with sodium carbonate in the presence of air to form a yellow compound (A). On acidification, the compound (A) forms an orange coloured compound (B) which is a strong oxidising agent. Identify write balanced chemical equations for each step.