Non Metal And Its Compounds — Part 1 MCQs with Explanations

* Allotropes are different structural forms of the same element. * Carbon is special because it can form many different allotropes. * Fullerenes : These are spherical or ellipsoidal molecules made of carbon atoms arranged in a geodesic structure, like a soccer ball. Think of them as tiny cages! * Carbon nanotubes : These are cylindrical structures made of rolled-up sheets of graphite. They aren't spherical, so they don't form geodesic globes. * Diamond : This has a giant covalent network structure, making it very hard. It doesn't form geodesic globes. * Graphite : This consists of layers of carbon atoms arranged in hexagonal sheets. These sheets are flat, and do not form geodesic globes. Therefore, only fullerenes form geodesic globes.

Ammonium is the correct answer to “Which among the following is a cation”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

it is highly polymerised is the correct answer to “Red phosphorus is less reactive than yellow phosphorus because”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

supercooled liquid is the correct answer to “Glass is best described as a”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

N2O is the correct answer to “Which of the following oxides of nitrogen is known as laughing gas”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Hydrogen fluoride is the correct answer to “Which one of the following is used for writing on glass”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

fluorine is the correct answer to “The most reactive among the halogen is”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

dry slaked lime is the correct answer to “Bleaching powder is obtained by the action of chlorine gas and”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

water gas is the correct answer to “Dihydrogen can be prepared on a commercial scale by the action of steam on hydrocarbons, when a mixture of CO and H 2 gas is formed. It is known as”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Neon is the correct answer to “Which of the following is the least reactive element”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

passing steam over red hot coke is the correct answer to “Water gas is produced by”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

fluorine is the correct answer to “Which of the following is diatomic”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Solid carbon dioxide is the correct answer to “What is dry ice”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Nitrogen oxide is the correct answer to “Which one of the following is produced during the formation of photochemical smog”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

as a moderator is the correct answer to “Graphite is used in atomic piles”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

fertilizer is the correct answer to “Non-metals are widely used in . . . . . . . .”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

iodine is the correct answer to “Which of the following halogen has the highest boiling point”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

zero is the correct answer to “The number of free electrons in the outer shell of a diamond's carbon atom is . . . . . . . .”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Radon is the correct answer to “Which noble gas is radioactive in nature”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Combination reaction is the correct answer to “Hydrogenation of vegetable oil is an example of . . . . . . . .”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

17th is the correct answer to “In which group of modern periodic table is halogen placed”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Both A and B is the correct answer to “Water softner is”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

1 and 2 is the correct answer to “Consider the following statements 1. Dry ice is the solid form of CO 2 . 2. Dry ice is used primarily as a cooling agent. 3. Water ice is colder than dry ice. Which of the statement(s) given above is/are correct”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Nitrogen dioxide is the correct answer to “Name the reddish brown gas emitted when vigorously heating lead nitrate.”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Maximum in a period is the correct answer to “The ionization potential of noble gas is-”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Very high pressure and high temperature is the correct answer to “Diamonds can be synthesized by subjecting pure carbon to:”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Helium is the correct answer to “Which gas is known as 'noble gas'”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

By burning hydrocarbons in a limited supply of air is the correct answer to “How is carbon black obtained”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

a-1, b-2, c-3, d-4 is the correct answer to “Match List I with List II . List-I List-II a. Hydrofluoric acid 1. Etching of glass b. I 2 dissolved in alcohol 2. Antiseptic c. Chlorine 3. Disinfectant d. Polyvinyl chloride 4. Plastic”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

2 and 3 is the correct answer to “Following statements are made in connection with Carbon dioxide (CO 2 ). 1. CO 2 is a poisonous gas. 2. CO 2 is an acidic oxide. 3. CO 2 turns lime water milky. Which of the statement(s) given above is/are correct”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Avoid catching fire is the correct answer to “Phosphorus is kept in water so that . . . . . . . .”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

its ignition temperature is very low is the correct answer to “Phosphorus is kept in water because”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

It can be used as a lubricant is the correct answer to “Which one of the following is not true for diamond”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

1, 2 and 3 is the correct answer to “Consider the following statements Laughing gas (N 2 O) 1. finds use as a propellant for whipped ice-cream. 2. used as an anaesthetic. 3. used for the preparation of N 3 H. 4. used as fuel for rockets. Which of the above is/are correct”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

4 is the correct answer to “Atomicity of phosphorus is-”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

NO2 is the correct answer to “Yellow colour of usual nitric acid is due to the presence of which one of the following”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

Coal is the correct answer to “Which of the following is not an allotrope of carbon”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

halogen is the correct answer to “Chlorine, fluorine and iodine are examples of known.”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

nitrogen is the correct answer to “Electric bulbs typically contain chemically inert gases such as . . . . . . . .”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.

halogen is the correct answer to “Which elements have 7 valence electrons in their outermost shells”. This question is standard in competitive examination syllabi for Non Metal And Its Compounds.