Reactions with Other Compounds

Q.

What is the reaction of ammoniacal Cuprous chloride with Acetylene?

Q. Methane and water react in the presence of Ni catalyst and heat to produce

1. water gas
2. carbon dioxide gas
3. only hydrogen gas

Q. The catalyst used in Fisher – Tropsch process is

1. Ni
2. Co
3. Fe
4. 

Q. In which of the following reactions does hydrogen act as an oxidising agent ?

1. $H_2+F_2\to$
2. $H_2+SiC{l}_4\to$
3. $Na+H_2\to$
4. $CuO+H_2\to$

Q.

Identify from the following which is not an oxidizing agent.

1. Oxygen

2. Aluminum

3. Chlorine

4. Sulphuric Acid

Q. In which of the properties listed below, hydrogen does not show similarity with halogens?
$I.$ Nature of the oxide
$II.$ Electropositive character
$III.$ Combination with alkali metals
$IV.$ Atomicity

1. $I\text{and}II$
2. $III\text{and}IV$
3. $II\text{only}$
4. $I\text{and}III$

Q.

When hydrogen is passed in vegetable oil _____ is produced.

Q. Which of the following noble gas is used in light bulbs?

1. Helium
2. Neon
3. Krypton
4. Argon

Q. A laboratory reagent imparts green colour to the flame. On heating with solid $K_{2}C{r}_2{O}_7$ and $conc.H_{2}S{O}_4$ it evolves a red gas. Identify the reagent

1. $CaC{l}_2$
2. $BaC{l}_2$
3. $NaCl$
4. None of these

Q.

Choose the correct option.

Chemical reactions in which heat energy is evolved are called ________

1. Endothermic reactions

2. Decomposition reactions

3. Displacement reactions

4. • Exothermic reaction

Q.

When a mixture of hydrogen and chlorine is exposed to sunlight, the greenish-yellow color of chlorine disappears. Give reason.

Q.

In an endothermic reaction energy absorbed is more than the energy released.

1. True
2. False

Q. A laboratory reagent imparts green colour to the flame. On heating with solid $K_{2}C{r}_2{O}_7$ and $conc.H_{2}S{O}_4$ it evolves a red gas. Identify the reagent

1. None of these
2. $NaCl$
3. $BaC{l}_2$
4. $CaC{l}_2$

Q. For joining railway tracks, ferric oxide is reacted with aluminium to produce aluminium oxide and iron. The balanced chemical equation for the given reaction is
$\underset{Ferricoxide}{F{e}_2{O}_{3\left(x\right)}}+\underset{Aluminium}{2A{l}_{\left(x\right)}}\to \underset{Aluminiumoxide}{A{l}_2{O}_{3\left(x\right)}}+\underset{Iron}{2F{e}_{\left(x\right)}}$
Which of the following substances is oxidized in the given reaction?

1. $A{l}_2{O}_3$
2. $Al$
3. $F{e}_2{O}_3$
4. $Fe$

Q. Which of the following statements is not correct when a mixture of NaCl and $K_{2}C{r}_2{O}_7$ is gently warmed with conc. $H_{2}S{O}_4$?

1. A deep red vapour is evolved
2. The vapours when passed into NaOH solution gives a yellow solution of $N{a}_{2}Cr{O}_4$
3. Chlorine gas is evolved
4. Chromyl chloride is formed

Q. The reaction, is called:

1. Haloform reaction
2. Clemmenson's reaction
3. Rosenmund's reaction
4. Cannizzaro's reaction

Q. Name a gas that can act as an oxidizing as well as a reducing agent:

1. Chlorine
2. Oxygen
3. Hydrogen
4. Nitrogen

Q.

Question 14

Which of the following reactions is an example f use of water gaas in the synthesis of other compounds?

$\left(a\right)C{H}_4\left(g\right)+H_{2}O\left(g\right)\underset{Ni}{\overset{1270K}{\to }}CO\left(g\right)+H_2\left(g\right)\left(b\right)CO\left(g\right)+H_{2}O\left(g\right)\underset{Catalyst}{\overset{673K}{\to }}C{O}_2\left(g\right)+H_2\left(g\right)\left(c\right)C_n{H}_{2n+2}+n{H}_{2}O\left(g\right)\underset{Ni}{\overset{1270k}{\to }}nCO+(2n+1)H_2\left(d\right)CO\left(g\right)+2H_2\left(g\right)\underset{Catalyst}{\overset{Cobalt}{\to }}C{H}_{3}OH\left(l\right)$

Q. Ammonical silver nitrate solution is called :

1. Fehling solution
2. (A) & (B)
3. None of these
4. Tollen's reagent

Q. Which of the following reagents may be used to distinguish between ethene and ethyne ?

1. Ammoniacal $AgN{O}_3$
2. $KMn{O}_4$
3. $AlC{l}_3$
4. $B{r}_2/CC{l}_4$

Q.

1. True
2. False

Q. In which of the properties listed below, hydrogen does not show similarity with halogens?
$I.$ Nature of the oxide
$II.$ Electropositive character
$III.$ Combination with alkali metals
$IV.$ Atomicity

1. $I\text{and}II$
2. $III\text{and}IV$
3. $II\text{only}$
4. $I\text{and}III$

Q. $H_{2}S{O}_4$ cannot be used to dry up $H_{2}S$ because it oxidises $H_{2}S$ to $S{O}_2$ and $S$.
If true enter 1, else enter 0.

1. 1

Q. What is the oxidizing agent in mercury cell?

Q. State with equations what happens when borax is heated on a platinum wire loop and the mixture is again heated first in the oxidizing flame and then in the reducing flame of a Bunsen Burner?

Q. In which reaction is hydrogen acting as an oxidising agent?

1. With sulphur to give hydrogen sulphide
2. With nitrogen to give ammonia
3. With ioding to give hydrogen iodide
4. With litium to give lithium hydride

Q. Which of the following does not give oxygen on heating?

1. $KCl{O}_3$
2. $Zn(Cl{O}_3{)}_2$
3. $(N{H}_4{)}_{2}C{r}_2{O}_7$
4. $K_{2}C{r}_2{O}_7$

Q. Consider the following reactions
I. $N{a}_2{S}_2{O}_3+dil.HCl\stackrel{\Delta }{\to }$
II. $N{a}_2{S}_2{O}_3+C{l}_{2}water\stackrel{\Delta }{\to }$
III. $S{O}_2+2H_{2}S\stackrel{\Delta }{\to }$
IV. $H_{2}S+H_2{O}_2\stackrel{\Delta }{\to }$
The reactions which gives yellow turbidity are :

1. III and IV only
2. I, II, III, and IV
3. II, III, and IV
4. I, III, and IV

Q. Methane and water react in the presence of Ni catalyst and heat to produce

1. water gas
2. carbon dioxide gas
3. only hydrogen gas

Q. A laboratory reagent imparts green colour to the flame. On heating with solid $K_{2}C{r}_2{O}_7$ and $conc.H_{2}S{O}_4$ it evolves a red gas. Identify the reagent

1. $CaC{l}_2$
2. $BaC{l}_2$
3. $NaCl$
4. None of these