Hydrochloric Acid

Q. Which will give white precipitate with $AgN{O}_3?$

1. 
2. 
3. 
4. Both A and C

Q.

Why $\mathrm{HCl}$ is not used in titration?

Q. A compound ‘P’ on treating with concentrated $H_{2}S{O}_4$ forms ‘R’. The product ‘R’ on heating at 460 K forms a zwitterion compound. Identify P, R respectively.

1. Aniline, anilinium hydrogensulphate
2. Aniline, sulphanilic acid
3. Anilinium hydrogensulphate, sulphanilic acid
4. Sulphanilic acid, anilinium hydrogensulphate

Q.

${\mathrm{PCl}}_3$ on hydrolysis gives fumes of -

1. ${\mathrm{H}}_3{\mathrm{PO}}_3+\mathrm{HCl}$

2. ${\mathrm{H}}_3{\mathrm{PO}}_4+\mathrm{HCI}$

3. ${\mathrm{H}}_3{\mathrm{PO}}_2\mathrm{and}{\mathrm{H}}_3{\mathrm{PO}}_3$

4. ${\mathrm{H}}_3{\mathrm{PO}}_2+\mathrm{HCl}$

Q.

What nitrating mixture is used for the nitration of Nitrobenzene?

Q.

What happens when concentrated Sulphuric Acid is added to Sodium Chloride?

Q.

Why is iron rendered passive in Nitric acid?

Q.

Give three uses of ethanoic acid.

Q.

Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of concentrated sulfuric acid?

1. ${\mathrm{CH}}_3\mathrm{COOH}$

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$

3. ${\mathrm{CH}}_3\mathrm{OH}$

4. ${\mathrm{CH}}_3\mathrm{CHO}$

Q.

Explain why hard water is not fit for washing clothes ?

Q.

When a test tube containing ${\mathrm{NH}}_4\mathrm{Cl}$salt is strongly heated, the solid completely disappears. Explain.

Q.

State one appropriate observation for the following:

Copper sulphide is heated with dilute hydrochloric acid.

Q. The dark purple colour of $KMn{O}_4$ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is :

1. $7$
2. $2$
3. $5$
4. $1$

Q.

2) Acetic acid has four hydrogen atoms in its one molecule. Yet it is called a monobasic acid. Explain why.

Q.

Complete and balance the following equations

(ⅰ )${\mathrm{AgNO}}_3+\mathrm{HCl}\to ........+.......$

(ⅱ)${\mathrm{Na}}_2{\mathrm{SO}}_3$ + $\mathrm{HCl}$ $\to$$.......+........+......$

(ⅱⅰ) ${\mathrm{NaHCO}}_3$ + $\mathrm{HCl}$ $\to$$......+.....+......$

(ⅳ) $\mathrm{FeS}$+ $\mathrm{HCl}$$\to$$.......+......$

Q.

Is $\mathrm{HCl}$ a stronger acid than $\mathrm{HF}$?

Q. At 25°c the values of molar ionic conductance at infinite dilution of HCL, CH3COONa and NaCl are 456, 91.0 and 236 ohm^-1cm^2mol^-1 respectively. If the molar conductance of 0.1M acetic acid solution is 171.05 ohm^-1cm^2mol^-1 what is degree of dissociation of acetic acid?

Q. Which of the following gives white precipitate when treated with silver nitrate solution?

1. 
2. $C{H}_2=CHC{H}_{2}Cl$
3. $C_6{H}_{5}C{H}_{2}Cl$
4. $CHC{l}_3$

Q.

Which property of concentrated sulphuric acid is in action when sugar turns black in its presence?

Q. Which of the following halides react(s) with $AgN{O}_{3\left(aq\right)}$ to give a precipitate that dissolves in $N{a}_2{S}_2{O}_{3\left(aq\right)}$
(IIT-JEE, 2012)

1. HCl
2. HF
3. HBr
4. HI

Q.

Write the function of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ in the preparation of $\mathrm{CO}$ from oxalic acid.

Q.

NaCl + H_{​​​​​​2}​​​​​_{​​​​​​​​​​}​​​​O= HCl + NaOH

Can we use this reaction to prepare Con. HCl ?

Q.

Why inverted funnel arrangement necessary for the laboratory preparation of Hydrochloric acid, $\mathrm{HCl}$ gas dissolved in water.? Give two reasons.

Q.

An aqueous solution of ammonia consists of

1. H⁺

2. OH^-

3. NH₄⁺

4. NH₄⁺ and OH^-

Q. Arrange the following compound according to dC-C order A) C2F4 B) C2H4 C) [PtCl3(C2H4)]-

Q.

Alcohols are weakly acidic in nature and react with active metals.What are the products formed in this reaction?

1. Primary alcohol and hydrogen gas

2. Metal alkoxide and hydrogen gas

3. Primary amine and hydrogen gas

4. Aniline

Q.

The natural source of Citric acid is________.

1. orange

2. tamarind

3. vinegar

4. curd

Q.

Name two $\alpha -\text{amino acids}$ which form a dipeptide which is $100$ times more sweet than cane sugar.

Q. Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution? Suggest the reason as well.
a) Zn(OH)₂ b)Al(OH)₃ c)Fe(OH)₃ d)Pb(OH)₂

Q. Hydrogen chloride gas on reaction with ammonia gives __