CHSL 21 07-06-2022 Shift 1


Question 1

Which of the following is a soft metal that ignites in air and reacts violently with water and has atomic number 37 in the periodic table?
निम्नलिखित में से कौन-सी एक नरम धातु है, जो हवा में प्रज्वलित होती है और पानी के साथ तेजी से अभिक्रिया करती है और आवर्त सारणी में इसकी परमाणु संख्या 37 है?

Options

A

Francium

Francium

B

Caesium

Caesium

C

Rubidium

Rubidium

D

Gallium

Gallium


Solution:

Correct Answer:

C

Rubidium

रूबिडियम


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