Which of the following statements regarding Helium is incorrect?A) It is used to fill balloons instead of hydrogen because it is lighter and non-inflammable. B) It is used as a cryogenic agent for carrying out experiments at low temperature. C) It is used (2024)

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Which statement is incorrect for helium? ›

Helium is a light gas, lighter in comparison to air which is mostly nitrogen and oxygen and it is non-inflammable in nature, and hence it is used to fill air-balloons. But helium is not lighter than hydrogen gas as its atomic weight is 4 while the molecular weight of hydrogen is 2. Hence statement A is incorrect.

Hydrogen is lighter than air but it is flammable and as oxygen is present in the air, so the risk of explosion and fire is there. Helium is lighter than air and it is a non-combustible gas so it used to fill balloons.

Helium is a very light colourless gas that does not burn and thus is non-flammable as it is safe. It is often used to fill objects that float in the air. It is a chemical element of the noble gas group found especially in natural gases.

Balloons: As already mentioned, the most common use for helium gas is for decorative balloons. However, this has since stretched to helium for weather balloons and airships. (Fun fact: hydrogen was originally used to fill balloons but it is a highly reactive gas.)

Helium does not form clathrate compounds due to its small size and they slip out of cavities formed by beta quinol molecules. Therefore helium doesn't form clathrate compounds. It is the right statement. So, the correct answer is Option D.

Perhaps the most familiar use of helium is as a safe, non-flammable gas to fill party and parade balloons.

Hydrogen is another gas lighter than air; it's even lighter than helium. Hydrogen, however, is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn't burn. When a match is held near a helium-filled balloon, the balloon pops.

Hydrogen is not preferred in balloons because it is combustible and explosive. It can catch fire readily. To prevent accidents, dihydrogen is not preferred instead helium is preferred in balloons.

Many balloon vendors have started selling balloons filled with hydrogen, as this gas is cheaper than helium gas. Helium gas balloons are light, can fly in the air, and are safe as they are non-combustible. In various functions and events, decorating spaces with balloons has become a common practice.

Helium is an "inert" gas and does not react in the presences of heat or air. This is why the balloon filled with helium does nothing more than pop. Hydrogen gas is very flammable. This is why the balloon filled with hydrogen ignites.

Why is helium better than hydrogen? ›

Helium offers the benefits of being non-combustible, inert, and provides moderate speed of analysis. In contrast, hydrogen is flammable, and may be reactive under specific conditions.

Because hydrogen is a highly flammable gas, it is referred to as inflammable air. The safe production, handling, and use of hydrogen - notably hydrogen gas fuel and liquid hydrogen - is covered under hydrogen safety. When working with hydrogen, the major problem is flammability.

Although it is the second most abundant element in the universe, helium cannot be manufactured, and once released into the atmosphere is lost for ever. Most of our supplies are extracted from the earth's crust in the US.

Most balloons can be filled with helium or air, simply check the instructions provided or on the product page for details. Some balloons can only be filled with air due to their size (like mini latex and foil balloons), and some balloons are not designed for helium (like balloon garlands).

Helium gas expands in hot weather and contracts in cold weather. So, if you leave your helium-filled balloons in a hot car or under the hot sun, the helium will expand, and the balloon may pop. On the other hand, cold temperatures can cause the helium to contract, making balloons in a cold room shrink and droop.

The correct statement about helium is that it is 1.5 times denser than air. Helium is an inert gas that is lighter than air, which is why it is often used to fill balloons and airships. Its low density allows the balloon or airship to float in the air.

Helium is small and extremely light, and is the least reactive of all elements; it does not react with any other elements or ions, so there are no helium-bearing minerals in nature. Helium was first observed by studying the sun, and was named after the Greek word for the sun, Helios.

There are two positive charges for the protons and two negative charges for the electrons. Therefore, helium doesn't have any net charge- it is a neutral atom.

Helium is one of the many nonmetals that is a gas. Other nonmetal gases include hydrogen, fluorine, chlorine, and all the group eighteen noble (or inert) gases.