Explanation

• Butter melts faster than ghee.
• Because it contains more water and milk solids, making its structure less stable.
• Water in butter lowers its melting stability at room temperature.
• This makes butter softer and quicker to melt.

Additional information:

• Ghee is almost pure fat with no water content.
• Ghee remains more stable because it is more refined.

Last verified on 14-06-2026

Explanation

• Zinc is commonly used in toothpaste.
• Because it helps reduce bacterial growth and controls bad breath.
• Zinc compounds (like zinc citrate or zinc chloride) kill or inhibit oral bacteria.
• It also helps reduce plaque formation.
• This improves overall oral hygiene.

Last verified on 14-06-2026

Explanation

• Soap lathers better in soft water because hard water contains calcium (Ca²⁺) and magnesium (Mg²⁺) ions that react with soap to form insoluble salts.
• These salts reduce soap’s ability to produce foam.
• Soft water does not contain these ions, so soap works fully.
• More soap remains active in soft water for lather formation.

Last verified on 14-06-2026

Explanation

• Sedimentary rocks favor the formation and storage of petroleum.
• Petroleum forms from organic matter buried under sediments over millions of years.
• These rocks have porous spaces where oil and gas can accumulate.
• Common examples include sandstone and limestone.

Last verified on 14-06-2026

Explanation

• Type: Chemical compound
• Formula: H₂O
• Elements: Hydrogen + Oxygen
• Bond: Covalent bond
• Ratio: 2 hydrogen : 1 oxygen

Last verified on 10-06-2026