CO is a poisonous gas because :
1. | It forms a complex with hemoglobin. |
2. | The CO–Hb complex is about 300 times more stable than the O 2 –Hb complex. |
3. | It can kill a person through suffocation on not receiving oxygen. |
4. | All of the above. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct reaction(s) among the following options is/are -
1.
2.
3.
4. All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCarbon dioxide is a gas but silica is a solid because:
1. Carbon dioxide is composed of discrete covalent molecules whereas silica has a continuous tetrahedral structure.
2. molecules are lighter than molecules.
3. is more acidic than .
4. The melting point of silica is very high.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the correct statements among the following:
a. is used as a refrigerant for ice-cream and frozen food.
b. The structure of contains twelve six-carbon rings and twenty five-carbon rings.
c. ZSM-5, a type of zeolite, is used to convert alcohol into gasoline.
d. CO is a colourless and odourless gas
1. (a) and (c) only
2. (b) and (c) only
3. (c) and (d) only
4. (a), (b) and (c) only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement among the following regarding behavior of in water is -
1. | BCI 3 readily undergoes hydrolysis while CCI 4 completely resists hydrolysis. |
2. | CCI 4 readily undergoes hydrolysis while BCI 3 completely resists hydrolysis. |
3. | Both BCI 3 and CCI 4 readily undergo hydrolysis. |
4. | Neither BCI 3 nor CCI 4 undergo hydrolysis. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement among the given options is :
1. | CO2 can be prepared by the action of dilute hydrochloric acid on calcium carbonate. |
2. | CO is prepared by the dehydration of formic acid with conc. H2SO4. |
3. | CO2 is commercially prepared by passing steam over hot coke. |
4. | CO is commercially prepared by passing steam over hot coke. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology