Chemistry · Metals and Non-metals
A teacher provided three elements P, Q, and R to students for testing: • Element P is malleable, conducts electricity, reacts with dilute HCl to release H2 gas, and its oxide turns red litmus blue. • Element Q is a brittle solid, does not conduct electricity, does not react with acids, and its oxide turns blue litmus red. • Element R is shiny, malleable, ductile, does not release H2 with acids, and forms an amphoteric oxide. Which option correctly classifies P, Q, and R?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1P is a non-metal, Q is a non-metal, R is a metal
- 2P is a metal, Q is a metal, R is a non-metal
- 3P is a non-metal, Q is a metal, R is a non-metal
- 4P is a metal, Q is a non-metal, R is a metal✓
Correct answer
P is a metal, Q is a non-metal, R is a metal
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