Question : In October 2022, which of the following substances was mapped in abundance for the first time by Chandrayaan-2 on the moon?
Option 1: Hydrogen
Option 2: Chlorine
Option 3: Oxygen
Option 4: Sodium
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Correct Answer: Sodium
Solution : The correct answer is Sodium.
The X-ray spectrometer 'CLASS' on the Chandrayaan-2 Orbiter has mapped an abundance of sodium on the moon, according to the ISRO.
Chandrayaan-2 is India's second moon mission, which was successfully launched by GSLV-MkIII-M1 from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota, in Andhra Pradesh. Chandrayaan-2 was launched in 2019 with an orbiter, a lander named Vikram, and a six-wheeled rover named Pragyaan.
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Question : Which country’s moon mission has mapped out the global distribution of sodium on the Moon’s surface?
Option 1: United States of America
Option 2: Russia
Option 3: India
Option 4: China
Question : The strongest oxidising agent among the following is
Option 1: Chlorine
Option 2: Iodine
Option 3: Fluorine
Option 4: Oxygen
Question : Which one of the following elements is an example of noble gas?
Option 1: Nitrogen
Option 2: Hydrogen
Option 3: Chlorine
Option 4: Helium
Question : The most abundant element by number in the living system is:
Option 3: oxygen
Option 4: carbon
Question : An acid having basicity 1 is
Option 1: Sodium dihydrogen phosphate
Option 2: Disodium hydrogen phosphate
Option 3: Sodium phosphate
Option 4: Phosphoric acid
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