Select the correct answer regarding anionic detergent.

To determine the kind of detergent, use the clue:
It is used in washing, has a negative head, and produces suds

What kind of soap is commonly used for scrubbing floors?

______________ is produced as a byproduct and has a variety of uses in soaps

Synthetic detergents have more advantages than soaps because synthetic detergents are

Which of the following are the allotropes of carbon?

The correct option is c) Both A and B.
When an element exists in multiple crystal forms, those forms are called allotropes. The two most common allotropes of carbon are diamond and graphite. The crystal structure of diamond is an infinite three-dimensional arrangement of carbon atoms, forming a structure in which each bond forms an equal angle with an adjacent bond. When the ends of the bond are joined, the structure becomes a tetrahedral, four-sided, three-sided pyramid structure.

Which of the following are the allotropes of carbon?

Which is the 5^th rare gas present in the atmosphere?

The correct option is d)Xe.

Xenon gas is the rarest gas on earth. Air contains only 0.000009% xenon. Therefore, it is only used when no other alternative lighter gas is available.
In addition to xenon, neon and krypton are present at 0.0018% and 0.00011%, respectively.
Applications of xenon gas include the manufacture of automotive headlights, semiconductors, plasma display panels and flash cameras.
In addition, xenon also has medical applications, including its anesthetic properties.

Which is the 5^th rare gas present in the atmosphere?

The correct option is d)Xe.

Xenon gas is the rarest gas on earth. Air contains only 0.000009% xenon. Therefore, it is only used when no other alternative lighter gas is available.
In addition to xenon, neon and krypton are present at 0.0018% and 0.00011%, respectively.
Applications of xenon gas include the manufacture of automotive headlights, semiconductors, plasma display panels and flash cameras.
In addition, xenon also has medical applications, including its anesthetic properties.

Under standard temperature and pressure (STP) conditions, neon exists as

The correct option is a)monoatomic gas.

Neon is a monatomic atom because it is an inert gas.
Noble gases have completely filled outer electron shells. This means that atoms do not have to gain or lose electrons.
Diatomic elements such as oxygen and nitrogen require electrons to fill their outer shells. When diatomic elements are not bonded to another element, they share electrons with another atom of the same kind. For this reason, oxygen and nitrogen are written as O₂ and N₂.
Neon is simply written Ne.

Under standard temperature and pressure (STP) conditions, neon exists as

The correct option is a)monoatomic gas.

Neon is a monatomic atom because it is an inert gas.
Noble gases have completely filled outer electron shells. This means that atoms do not have to gain or lose electrons.
Diatomic elements such as oxygen and nitrogen require electrons to fill their outer shells. When diatomic elements are not bonded to another element, they share electrons with another atom of the same kind. For this reason, oxygen and nitrogen are written as O₂ and N₂.
Neon is simply written Ne.

_______ is the first and lightest noble gas.

The correct option is c)He.

Helium is the lightest of the noble gases and the second most abundant element in the universe. The sun produces hundreds of millions of tons of helium every second.
Closer to home, over hundreds of millions of years, the radioactive elements decayed deep within the earth to produce helium, and the helium slowly made its way to the surface, where it became trapped in the strata.
Of the 191,000 particles of air swirling around us, one is helium, but the gas is so light that it escapes Earth's easily gravitational pull and can be lost in space.

_______ is the first and lightest noble gas.