(i) Fehling's solution test: Aliphatic aldehydes reduce Fehling's solution but aromatic aldehydes do not. Thus, acetaldehyde gives a red ppt. of Cu2O with Fehling's solution but benzaldehyde does not. (ii)…
1. LitmusTest: Phenol being acidic turns blue litmus red while methanol being neutral has no effect on blue litmus. 2. FeCl3 Test: Phenol gives a violet colouration with FeCl3 solution…
1. Ethane is a saturated hydrocarbon and ethylene is an unsaturated hydrocarbon.2. Ethane does not decolourise bromine (Br2) in carbon tetrachloride (CCl4) whereas ethylene gives this tests. 3. Ethane does…
1. Methane is a saturated hydrocarbon (C - C) while acetylene is an unsaturated hydrocarbon (C ≡ C).2. Methane being a saturated hydrocarbon does not decolourise Br2 in CCl4 while…
It is the tendency of an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond. It is denoted by a Greek…
Ethanol (C2H5OH) and phenol (C6H5OH) may be distinguished by the following four tests: (i) Litmus Test: Phenol being acidic turns blue litmus red while ethanol being neutral does not give…
Formic acid (HCOOH) contains both an aldehydic (-CHO) as well as a carboxyl group (-COOH) but acetic acid (CH3COOH) contains only a carboxyl group. Therefore, formic acid behaves as a…
Formaldehyde (HCHO) and acetaldehyde (CH3COOH) may be distinguished by performing the iodoform test with NaOI(I2/NaOH). Acetaldehyde gives a yellow precipitate while formaldehyde does not. CH3COOH + 3NaOI → CH3COONa +…