Carbon Monoxide

Q.

Which of the following is a method of preparation of CO?

1. CO can be prepared by heating potassium ferrocyanide with conc.

2. By heating oxides of heavy metals

3. By passing steam over red hot coke

4. By dehydration of formic acid with conc. at 373 K

Q. The chemical formula of carbon monoxide is

1. CO
2. CO${}_2$
3. C${}_2$O
4. C${}_2$O${}_2$

Q.

Which amongst the following gas is formed during the incomplete combustion of carbon?

1. Carbon dioxide

2. Carbon monoxide

3. Ozone

4. Oxygen

Q.

Carbon monoxide is toxic because ___ .

1. it releases excess oxygen

2. None of these

3. it is inert

4. it wants more oxygen

Q. How is carboxy haemoglobin formed?

1. Reaction of carbon monoxide with blood
2. Reaction of carbon monoxide and nitrogen with blood
3. Reaction of both carbon monoxide and dioxide with blood
4. Reaction of carbon dioxide with blood

Q. Carbon monoxide is toxic because

1. Because it releases excess oxygen
2. Because it has affinity for oxygen
3. Because it is inert
4. None of these.

Q. The products formed when a candle burns in air are:

1. nitrogen
2. carbon monoxide
3. carbon dioxide
4. carbon in the form of soot

Q.

Why is carbon monoxide called the silent killer?

Q. Combustion of coal in power plant produces mainly _______ which is a major pollutant of air.

1. Sulpher Dioxide
2. Nitrogen Dioxide
3. Methane
4. Chloroflurocarbons

Q. Which of the following gases together constitute producer gas?

1. $CO$
2. $C{O}_2$
3. $N_2$
4. $H_2$

Q. Fly ash is produced by __________.

1. petroleum
2. all of the above
3. coal
4. natural gas

Q.

Which of the following oxides is neutral?

1. $CO$

2. $ZnO$

3. $Sn{O}_2$

4. $Si{O}_2$

Q. What are the components of water gas?

1. Carbon dioxide and Hydrogen
2. Carbon and Hydrogen
3. Carbon monoxide and Hydrogen
4. Ammonia and Hydrogen

Q.

Identify (X) to (Z) in the following sequence of reactions -

$CaO+C\stackrel{{2000}^{\circ }C}{\to }\left(X\right)+\left(Y\right){1100}^{\circ }C\downarrow +N_2\left(z\right)\stackrel{hydrolysis}{\to }\left(P\right)\text{gas}$

1. $\left(X\right)\equiv Ca{C}_2\left(Y\right)\equiv CO\left(Z\right)\equiv C{a}_3{N}_2\left(P\right)\equiv N{H}_3$

2. $\left(X\right)\equiv Ca{C}_2\left(Y\right)\equiv C\left(Z\right)\equiv Ca\left(N{H}_2\right)2\left(P\right)\equiv N{H}_3$

3. $\left(X\right)\equiv Ca{C}_2\left(Y\right)\equiv CO\left(Z\right)\equiv CaC{N}_2\left(P\right)\equiv N{H}_3$

4. $\left(X\right)\equiv Ca{C}_2\left(Y\right)\equiv C\left(Z\right)\equiv CaC{N}_2\left(P\right)\equiv N{H}_3$

Q.

Which of the following is true for carbon monoxide?

1. It is a colourless and odourless gas

2. Carbon monoxide is toxic in nature

3. It gives a blue flame when burns in air

4. It reacts with metals to form metal carbonyls

Q.

Which of the following is water gas?

1. $CO+H_2$

2. $CO+N_2$

3. $CO+N_2$

4. $CO+H_{2}O$

Q.

Which of the following mixtures of gases is called the producer gas?

1. Carbon monoxide + hydrogen

2. Carbon monoxide + oxygen

3. Carbon monoxide + nitrogen

4. Carbon monoxide + water

Q.

is carbon present in our body if yes in which form

Q.

Write scientific reasons​

a) Graphite is a conductor of electricity.​

b) Graphite is not used in ornaments.​

c) Limewater turns milky when CO2 is passed through it.​

d) Biogas is an eco-friendly fuel.​

Q.

Which of the following is water gas?

1. 

2. 

3. 

4. 

Q.

If an element has 3 electrons in total, how will you distribute it among the shells?

1. All three electrons in L shell.
2. 2 electrons in L shell and 1 electron in K shell.
3. All three electrons in K shell.
4. 2 electrons in K shell and 1 electron in L shell.