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101.

Which of the following is hydrogen’s electronic configuration?(a) 1s^1(b) 1s^2(c) 2s^1(d) 2s^2I had been asked this question in an internship interview.I want to ask this question from Position of Hydrogen in the Periodic Table in chapter Hydrogen of Chemistry – Class 11

Answer»

The correct answer is (a) 1s^1

For explanation: The electronic configuration of HYDROGEN is 1s^1, as it has only one Proton. It BELONGS to the FIRST group and is ready to gain one ELECTRON in order to become a noble gas like HELIUM which is next to it.
Discussion
102.

Which of the following element is an alkali as well as halogen?(a) hydrogen(b) sodium(c) chlorine(d) magnesiumI have been asked this question in an interview for job.My enquiry is from Position of Hydrogen in the Periodic Table topic in chapter Hydrogen of Chemistry – Class 11

Answer»

Right answer is (a) hydrogen

Easy explanation: Hydrogen is an alkali METAL as well as a halogen because of its outer shell configuration as well as its high electronegative CHARACTER, no other element has a type of DUEL CHARACTERISTIC in the periodic table.
Discussion
103.

The atomic number of hydrogen is 1.(a) true(b) falseI had been asked this question in an interview for job.Asked question is from Position of Hydrogen in the Periodic Table in division Hydrogen of Chemistry – Class 11

Answer» RIGHT OPTION is (a) true

To explain I would SAY: ATOMIC number of an element represents the number of protons in that particular element. Here as hydrogen has only ONE Proton, its atomic number is considered to be one, so the above statement is true.
Discussion
104.

The element that is known as Rogue element is ________(a) beryllium(b) hydrogen(c) helium(d) lithiumI got this question by my college director while I was bunking the class.Asked question is from Position of Hydrogen in the Periodic Table in section Hydrogen of Chemistry – Class 11

Answer»

The correct choice is (b) hydrogen

Explanation: Hydrogen resembles with alkali metals as well as halogens at the same time it differs from both and certain CHARACTERISTICS, that is why hydrogen is CALLED a Rogue Element. FINALLY, it’s been placed in the first group.
Discussion