1. If formaldehyde and KOH are heated, then we get
(a) Methane
(b) Methyl alcohol
(c) Ethyl formate
(d) Acetylene.
2. Formalin is an aqueous solution of
(a) Fluorescein
(b) Formic acid
(c) Formaldehyde
(d) Furfuraldehyde.
3. Which of the following is the correct decreasing order of acidic strength of methanoic acid (ii) ethanoic acid (iii) propanoic acid (iv) butanoic acid.
(a) > (ii) > (iii) > (iv)
(b) (ii) > (iii) > (ii) >
(c) > (iv) > (iii) > (ii)
(d) (iv) >> (iii) > (ii)
4. Among the following the strongest acid is
(a) CH3COOH
(b) CH2 ClCH2 COOH
(c) CH2 ClCOOH2
(d) CH3 CH2 COOH
5. The compound formed when malonic ester is heated with urea is
(a) Cinnamic acid
(b) Butyric acid
(c) Barbituric acid
(d) Crotonic acid.
6.The above shown polymer is obtained when a carbonyl compound is allowed to stand. It is a white solid. The polymer is (a) Trioxane
(b) Formose
(c) Paraformaldehyde
(d) Metaldehyde
7.
