221. Organic radical with general formula C_nH_2n+1 is
(A) Allyl
(B) Alkyl
(C) Pheny
(D) Benzyl

222. The next homologue of C₈H₁₈ is
(A) C₉H₂₀
(B) C₉H₁₈
(C) C₈H₁₆
(D) C₇H₁₄

223. Methane is the first member of
(A) Alcohol Series
(B) Carboxylic acids Series
(C) Alkane Series
(D) Alkene Series

224. The compound C₃H₈ (Propane) must have
(A) An ionic bond
(B) At least one triple bond
(C) All single bonds
(D) At least one double bond

225.Organic radical with general formula C_nH_2n+1 is
(A) Allyl
(B) Alkyl
(C) Pheny
(D) Benzyl

226. The next homologue of C₈H₁₈ is
(A) C₉H₂₀
(B) C₉H₁₈
(C) C₈H₁₆
(D) C₇H₁₄

227. Methane is the first member of
(A) Alcohol Series
(B) Carboxylic acids Series
(C) Alkane Series
(D) Alkene Series

228. The compound C₃H₈ (Propane) must have
(A) An ionic bond
(B) At least one triple bond
(C) All single bonds
(D) At least one double bond

229. The name of C₆H₁₄ is ?
(A) Hexane
(B) Decane
(C) Propane
(D) Heptanes

230. Lower the pH value, _________ will be an acid.
(A) weaker
(B) neutral
(C) stronger
(D) none of these