Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
COMEDK2017Chemistryp Block Elements (Group 15, 16, 17 & 18)

Helium is used in balloons in place of hydrogen because it is

Options

  1. Aincombustible
  2. Blighter than hydrogen
  3. Cradioactive
  4. Dmore abundant than hydrogen

Correct answer

A. incombustible

Step-by-step solution

Helium is used in balloons in place of hydrogen, because it is incombustible and inert in nature.

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Which among the following is NOT in accordance with the property stated against it? 2026Complete hydrolysis of Xenon hexafluoride gives HF along with compound X. The hybridisation in X is 2025Orthophosphorus acid on disproportionation gives PH ₃ and another oxoacid of phosphorus ' X '. The basicity of X is 2025Observe the following P ₄+ SOCl ₂ Products P ₄+ SO ₂ Cl ₂ Products In both the reactions, a common product ' x ' is obtained. The number of lone pair of elecrons on the central ato 2025The number of P = O , P - P bonds present in oxoacid of phosphorus, prepared by treating red P ₄ with alkali are respectively 2025Which of the following is not correct? 2025Nature of two oxides of nitrogen X and Y formed in the reaction of sodium nitrite with hydrochloric acid is 2025Which of the following is not correct ? 2025 Full p Block Elements (Group 15, 16, 17 & 18) list All COMEDK PYQs