Preparation of Carboxylic Acids

Q. balance the equation- (NH4)3PO4+Pb(NO3)4-----------Pb3(PO4)4+NH4NO3

Q.

How is acetic acid prepared from acetylene?

Q. Balance this chemical equation: S8+HNO3------>H2SO4+H2O+NO2 with steps.

Q.

The odour of acetic acid resembles:

1. Kerosene

2. Rose

3. Vinegar

4. Burning plastic

Q.

Write the balanced chemical equations for the following reactions:

1. Sodium hydrogen carbonate on reaction with hydrochloric acid gives sodium chloride, water and liberates carbon dioxide gas.
2. Copper sulphate on treatment with potassium iodide precipitates cuprous iodide (CuI) liberates iodine gas and also forms potassium sulphate.

Q.

98. How do you bring about the following conversions?

(b) ethyne to acetic acid

Q.

In which reaction is nitric acid acting as an oxidising agent?

1. 

2. 

3. 

4. 

Q.

Which does not decolorize Bromine water?

Q. Balance the equation C6H6 +O2 ----> CO2+ H2O. Explain it with proper steps.

Q.

How is acetic acid prepared from
(a) ethanol (b) acetylene ?

Q.

What happens when ethanol is oxidized with chromic anhydride in glacial ethanoic acid?

Q. Complete:

(a) Vinegar is prepared by the bacterial oxidation of ___.

(b) The organic acid present in vinegar is ___.

(c) The next higher homologue of ethanoic acid is ___.

[3 MARKS]

Q. 44. What is the balanced equation for when Al reacts with NaOH? Is there any method to balance this equation quickly?

Q. 6Co2 + 9H2O ----- C6H12O6 +6O2 + 3H20 Is this a balanced chemical equation

Q. Balance the following equations :- 1. Al(s) + NaOH(aq) ----------> NaAlO2(aq) + H2O(l) 2. Zn(s) + NaOH(aq) ----------> Na2ZnO2(aq) + H2O(l)

Q.

How is acetic acid prepared from ethanol and acetylene?

Q.

Write balanced chemical equations of Ethanol under high pressure and low temperature is treated with acidified Potassium dichromate

Q. Complete the reaction invovled in the conversion of propanol to prpanoic acid:
$C_2{H}_5\mathrm{CHO}\stackrel{H_2{\mathrm{CrO}}_4}{\to }$$\stackrel{H_2{\mathrm{CrO}}_4}{\to }$${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{COOH}$

1. $C_2{H}_{5}CHO$
2. $C_2{H}_{5}OC{H}_3$
3. $C{H}_3-CO-C{H}_3$

Q. 56.What happens when?Give balanced chemical equations. a)Acidifed solution of KmnO4 reacts with H2O2 b)O3 reacts with phosphorus.

Q.

Complete :
(a) Vinegar is prepared by the bacterial oxidation of ....... .
(b) The organic acid present in vinegar is .... .
(c) The next higher homologue of ethanoic acid is ..... .

Q.

Write the balanced chemical equation for the preparation of the following.

Ethanoic acid from ethane.

Q. Based on the information provided in the table below select the
incorrect option.

Compound	Result when exposed to air	Characteristic
A	loses mass	Used in detergents.
B	gains mass	Turns to aqueous solution when exposed to air.
C	gains mass	Used to dry gases.

Q. In a balanced equation, number of different atoms of the reactants___ to that of the products.

1. is equal
2. is unequal
3. is higher
4. is lower

Q. Which of the following are the molecular formula of heptane and heptene respectively?

1. $C_7{H}_{12}$, $C_7{H}_{14}$
2. $C_7{H}_{14}$, $C_7{H}_{16}$
3. $C_7{H}_{14}$, $C_7{H}_{12}$
4. $C_7{H}_{16}$, $C_7{H}_{14}$

Q. Give balanced chemical equation for liquor Ammonia reacting with silver chloride

Q.

The substance which gets oxidized to acids on heating them with solutions of potassium permanganate $KMn{O}_4$ or potassium dichromate $K_{2}C{r}_2{O}_7$ is

1. alkenes

2. alkanes

3. bases

4. alkalis

Q. 19. Which of the following chemical equation is not balanced? 1. 3Fe +4H_2O ----- Fe_3O_4+4H_2O 2.4NH_3+8O_2------ 4NO+ 6H_2O 3. 4Na + O_2------ 2Na_2O

Q. Which of the following compounds acts as oxidising agents?

1. PCC
2. $N{a}_{2}C{r}_2{O}_7$
3. $HN{O}_3$
4. $H_{2}Cr{O}_4$
5. NaOCl
6. $LiAl{H}_4$
7. $NaB{H}_4$
8. Na/Hg

Q. Balance the following equation (also show the steps): Cu+HNO3-->Cu(NO3)2+NO+H2O

Q.

Conversion of ethanol to ethanoic acid is a/an:

1. Decomposition reaction

2. Oxidation reaction

3. Reduction reaction

4. Substitution reaction