Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2004Chemistrys Block ElementsActual

Assertion : Mg is not present in enamel of human teeth. Reason : Mg is an essential element for biological functions of human.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion
  3. CIf assertion is true but reason is false
  4. DIf both assertion and reason are false.

Correct answer

B. If both assertion and reason are true but reason is not the correct explanation of assertion

Step-by-step solution

Enamel, the hardest substance of the body is composed of fluorine not magnesium. Magnesium is an essential element as it acts as a co-factor of many enzymes of glycolysis and a number of other metabolic reactions dependent upon ATP.

Practice s Block Elements on Quantrex Academy →

More from s Block Elements

Identify the oxide used as CO ₂ adsorbent and oxygen generator from following. 2026Which of the following substance does NOT contain CaCO ₃ ? 2026Which of the following compound used in petrol refining? 2026Which of the following elements is the radioactive alkaline earth metal? 2026Identify the pair of basic oxides from the following. 2026Bordeaux mixture consist of 2019Alkali metals readily dissolve in liquid ammonia to give blue coloured solutions. The blue colour is believed to be due to 2018If Na ⁺ ion is larger than Mg ²⁺ ions and S ²⁻ ion is larger than Cl ⁻ ion, which of the following will be stable salt in water? 2018 Full s Block Elements list All NEET PYQs