Which of the following reduces Tollen's reagent?

Write about the solubility of carboxylic acid compounds.

Which of the following represents the correct order of acidity?

The product $(D)$ in the following reaction sequence is: $HOCH_2CH_2CH_2COOCH_2CH_3$ $\xrightarrow{PCC} (A)$ $\xrightarrow[{(1 \ molar \ equivalent)}]{H_2C=CHMgBr} (B)$ $\xrightarrow{NH_4Cl/H_2O} (C)$ $\xrightarrow[H_2O]{KOH}$ $\xrightarrow{H_3O^{+}}$ $\xrightarrow[pyridine]{(CH_3CO)_2O} (D)$

Which of the following compounds reacts with methyl magnesium iodide to produce ethyl acetate?

Which of the following orders of acidic strength is not correct?