Consider the following compounds (1) H3CF (2) H2CF2 (3) CH4 (4) H3CCF3 (5) CH3CH2^+ (6) C2H4 and calculate value of Y + X, (Where X is the total number of compounds which have H - C - H bond angles eq

Question

Consider the following compounds (1) H3CF (2) H2CF2 (3) CH4 (4) H3CCF3 (5) CH3CH2^+ (6) C2H4 and calculate value of Y + X, (Where X is the total number of compounds which have H - C - H bond angles equal to 109°28' and Y is the total number of compounds which have H - C - H bond angles greater than 109°28' and less than 120°)

Prashant Kotian · Accepted Answer

Correct answer: 5

**SOLUTION:**
X = 1 (CH4 HAS EXACTLY 109°28')
Y = 4 (H3CF, H2CF2, H3CCF3, AND C2H4 FALL IN THE RANGE >109°28' AND <120°).
Y + X = 4 + 1 = 5.. Step 1: A solution conducts electricity if it contains mobile ions (electrolytes). Dissolving ionic salts or strong acids/bases in water releases these ions. Step 2: Green vitriol (FeSO4.7H2O), Chile saltpetre (NaNO3), and Potash alum (K2SO4.Al2(SO4)3.24H2O) are all ionic electrolytes that dissociate completely into ions. Alcohol (such as ethanol) is a covalent molecular substance that dissolves via hydrogen bonding but does not ionize. Step 3: Since alcohol does not produce any ions in solution, its aqueous solution is non-conducting, matching option (c).

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