Silver Nitrate Test

Q.

Complete and balance the following reaction:

$\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2+2\mathrm{HCl}(\mathrm{dil}.)\to$

Q.

Complete and balance the following equations:

$\mathrm{KCl}+{\mathrm{H}}_2{\mathrm{SO}}_4(\mathrm{conc}.)\to$

Q.

Name the stain which is used to prepare temporary mount of onion peel . From the following 1) safranine. 2) methylene blue

Q.

Name the process by which hydrogen is used in the preparation of Vanaspati ghee from vegetable oil by passing hydrogen gas through vegetable oil in presence of nickel as a catalyst.

Q.

Which colour precipitate is obtained when the silver nitrate solution is added to dilute hydrochloric acid?

1. greenish yellow precipitate is obtained.

2. chlorine gas is obtained

3. dense white fumes of ammonium chloride.

4. curdy white precipitate of silver choride is obtained

Q.

Complete the following reaction and balance it:

$\mathrm{PbO}+\mathrm{HCl}\to$

Q.

Which of the following substances on heating does not liberate carbon dioxide ?

1. Calcium carbonate

2. Copper(II) carbonate

3. Sodium hydrogen carbonate

4. Sodium carbonate

Q.

How the respective nitrate salt be formed from the following? Give the equation

(c) Lead carbonate

Q.

State what is observed when hydrochloric acid is added to silver nitrate solution?

Q.

________ is treated with chlorine to obtain bleaching powder.

1. ${\mathrm{CaSO}}_4$

2. $\mathrm{Ca}{\left(\mathrm{OH}\right)}_2$

3. $\mathrm{Mg}{\left(\mathrm{OH}\right)}_2$

4. $\mathrm{KOH}$

Q.

Write the balanced chemical equation for ethene combines with hydrogen chloride.

Q. In the silver nitrate test, we confirm the compound given to be $HCl$ due to the formation of a white precipitate. This white precipitate is .

1. $AgCl$
2. $HN{O}_3$
3. $AgN{O}_3$

Q.

Identify the gas from the following observations:

A colourless gas which fumes strongly in air and has a sharp biting smell. It gives dense white fumes with a glass rod dipped in HCl.

Q.

Take about one teaspoon full of melted ghee with an equal quantity of conc. HCl in a test tube and add to it a pinch of cane sugar. Shake well for one minute and test it after 5 minutes. The appearance of crimson color in the lower layer shows the presence of

1. Vegetable oils

2. Cotton seed oil

3. vanaspati

4. Animal fats

Q.

An insoluble salt prepared by synthesis is

1. FeCl₃

2. FeS

3. NaCl

4. CaCl₂

Q.

Select from the list below the gas that matches the description given in each case and answer the
questions that follows:Ammonia, chlorine, hydrogen chloride, sulphur dioxide.
When gas C is mixed with gas B, dense white fumes are seen and there is no other product.

What is the name of the gas C?

What is the name of the product of the reaction between gas B and gas C ?

Q.

For each of the following chemical compounds write the chemical equation involved in its preparation and mention its one use.

(i) Calcium oxychloride

Q.

What is the purpose of the contact process? Name the catalyst used in the contact process. Write the balanced equation for the reaction in the process which takes place in the presence of the catalyst.

Q. How do you test for vanaspati in ghee?

Q.

What happens when (give balanced chemical equation and write the names of the reactants and products in each case):

Ethyne reacts with chlorine in the sunlight

Q.

Complete the following equations:

$2{\mathrm{NaHCO}}_3+{\mathrm{H}}_2{\mathrm{SO}}_4\to \mathrm{\_\_\_\_\_\_\_\_}+2{\mathrm{H}}_2\mathrm{O}+\mathrm{\_\_\_\_\_\_}$

Q. Which of the following is an acidic gas which gives dense white fumes when the glass rod is dipped in ammonia solution and brought near it?

1. $HCl$
2. $C{l}_2$
3. $H_{2}O$
4. $N{H}_3$

Q.

What happens when HCl is treated with an aqueous solution of AgNO₃?

1. Gives white fumes.

2. A yellow precipitate is formed.

3. A white precipitate is formed.

4. No visible reaction.

Q.

Question 178

Complete and balance the reaction

$\mathrm{Mg}+{\mathrm{H}}_2{\mathrm{SO}}_{4\to }$

Q.

Complete and balance the equation

${\mathrm{NO}}_2+{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2\to$

Q.

Answer the following question:

The gas produces dense white fumes with Ammonia gas.

Q. Which one of the following salt solutions would produce a precipitate when added to $H_{2}S{O}_4$ but not when added to $HCl$?

1. $N{H}_{4}N{O}_3$
2. $LiN{O}_3$
3. $CsN{O}_3$
4. $Ba{\left(N{O}_3\right)}_2$
5. $AgN{O}_3$

Q.

For the following reaction, identify the products formed and balance the equation:

${\mathrm{HNO}}_3+{\mathrm{CaCO}}_3\to$

Q. The black powder which gives greenish yellow gas when heated with conc. hydrochloric acid is :

1. cuprous oxide
2. lead oxide
3. coal
4. manganese dioxide

Q.

Complete and balance the equation

${\mathrm{NaHCO}}_3+{\mathrm{H}}_2{\mathrm{SO}}_4\to$