Question : A solution is

Option 1: a homogeneous mixture of two or more substances

Option 2: a solid dissolved in a liquid

Option 3: a solid dissolved in water

Option 4: a mixture of two liquids

Question : The radius of curvature of a charged particle's passage in a homogeneous magnetic field is proportional to:

Option 1: energy of particle

Option 2: charge of particle

Option 3: momentum of a particle

Option 4: strength of the field

Question : Which of the following options are homogeneous mixtures?

Option 1: Solution, colloid, suspension, milk, toothpaste, salt water and brass

Option 2: The solution, salt water and Brass

Option 3: Solution, Colloid, Milk, Toothpaste, Saltwater, and Brass

Option 4: Colloid, suspension, milk and toothpaste

Question : Which of the following is a major component of water pollution in the Bengal Basin?

Option 1: Chromium

Option 2: Arsenic

Option 3: Calcium

Option 4: Potassium

Question : Chlorine gas is a major component of which of the following?

Option 1: Water

Option 2: Tear gas

Option 3: Liquefied petroleum gas

Option 4: Gobar gas