Chemistry - Study Mode

[#921] The number of waves in n x 10 th Bohr's orbit are
Correct Answer

(B) n

Explanation

Solution: The number of waves in n x 10 th Bohr's orbit are n waves.

[#922] The mass of one Avogadro number of helium atom is
Correct Answer

(D) 4 x 6.02 x 10 23 gram

Explanation

Solution: The mass of one Avogadro number of helium atom is
4 x 6.02 x 10 23 gram.

[#923] The items amenable to detection by soft x-rays are
Correct Answer

(D) genuine coins from counterfeit coins

Explanation

Solution: The items amenable to detection by soft x-rays are genuine coins from counterfeit coins.

[#924] The material which can be deformed permanently by heat and pressure is called a
Correct Answer

(B) thermoset

Explanation

Solution: The material which can be deformed permanently by heat and pressure is called thermoset.

[#925] The inexpensive and commonly used variety of glass is called soda glass. It is called so because
Correct Answer

(B) is made using soda(sodium carbonate)

Explanation

Solution: The inexpensive and commonly used variety of glass is called soda glass. It is called so because is made using soda(sodium carbonate).