A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with K$_2$CrO$_4$ to give yellow precipitate. When the sodium carbonate extract of the salt solution is heated with conc. HNO$_3$ and ammonium molybdate, it resulted a canary yellow precipitate. The cation and anion present in the salt are respectively,

5.33 g of CrCl₃·6H₂O, which is a 1 : 3 electrolyte, is dissolved in water and is passed through a cation exchanger. The chloride ions in the eluted solution, on treatment with AgNO₃ results in 8.61 g of AgCl. The ratio of moles of complex reacted and moles of AgCl formed is ________ × 10^-2. (Nearest integer)

[Molar mass in g mol^–1 Cr : 52, Ag : 108, Cl : 35.5, H : 1, O : 16]

Consider the isomers of hydrocarbon with molecular formula $C_5H_{10}$. These isomers do not decolourise $KMnO_4$ solution. These isomers are subjected to chlorination with chlorine in presence of light to give monochloro compounds. The total number of monochloro compounds (structural isomers only) formed is ________.

One mole of an alkane (x) requires 8 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the alkane (x) is ________.