HomeBrowseBy SubjectTrendsDeep InsightsInsightsAbout
Start free trial
Home / Mole concept / Chronology

Mole concept

8 PYQ across 4 exams · 1994–2026 — the complete chronological timeline of how UPSC has tested this idea, oldest to newest.

CSE 1994 → CDS 2017 → GEO 2022 → NDA 2024
19941 PYQ
CSEQ40
One mole of hydrogen gas bums in excess of oxygen to give 290 kJ of heat. What is the amount of heat produced when 4g of hydrogen gas is bur…
20172 PYQs
CDSQ18
How many hydrogen atoms are contained in 1.50 g of glucose (C6H12O6)?…
CDSQ18
What is the number of atoms in 46 g of sodium-23 (N = Avogadro constant)?…
20222 PYQs
CDSQ10
What is the number of moles of 'He' in 104 g of helium gas ?…
GEOQ13
What is the number of moles of carbon in a sample containing 72.06 g of carbon?…
20241 PYQ
NDAQ60
The mass of 0.5 mole of N2 gas is…
20251 PYQ
NDAQ79
Which one of the following statements is NOT correct?…
20261 PYQ
GEOQ63
A tablespoon holds 0·5 mole of water. What is the number of molecules present in it?…
Related concepts — explore their timelines too
Thermochemistry
← Back to Mole concept
CrispUPSC · YouTube · Telegram · About · What’s New · invite-only beta
💬 Feedback

Send feedback