Exams › JEE Main › Chemistry

Assertion (A): Tungsten has a very high melting point. Reason (R): Tungsten is a covalent compound. Choose the correct option about A and R.

1. Both (A) and (R) are true and (R) is the correct explanation of (A)
2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
3. (A) is true but (R) is false
4. (A) is false and (R) is true

Correct answer: (A) is true but (R) is false

Solution

Tungsten does have a very high melting point (about 3422 C), so A is true; but it is a metallic element, not a covalent compound, so R is false.

Related JEE Main Chemistry questions

• A transition metal M gives a volatile chloride whose vapour density is 94.8. If this chloride contains 74.75% chlorine by mass, what is the formula of the metal chloride?
• What is the ratio of the magnetic moments of Fe(III) and Co(II)?
• Which of the following species contains the greatest number of unpaired electrons?
• Which of the following species contains an atom in the +6 oxidation state?
• Which of the following pairs contains compounds in which the metal in each case is present in its maximum possible oxidation state?
• Among the following metal oxides, which one exhibits antiferromagnetic behavior?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →