Life Sciences
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE XL 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 19–21 of 122. Imported answers require review unless explicitly marked reviewed.
Question 19
Open questionXL-PNAT1 markNeeds review
Among the following, the number of molecules possessing one or more lone pairs on the central atom is ______________ (in integer).
BeCl₂ SnCl₂ BF₃ NH₃ SF₄ PF₅ and SF₆
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Open questionXL-PMCQ2 marksNeeds review
An ideal gas in an insulated container expands against zero external pressure. For this expansion, the CORRECT statement is
Your answerChoose one option.
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Open questionXL-PMCQ2 marksNeeds review
The major products P and Q obtained in the following reactions are
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