A metal cup and plastic cup feel different at same room temperature mainly due to A Different heat flow B
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Chapter 4: Heat and Thermodynamics Basics (Set-1)
When a hot spoon is kept in cold water, what usually moves from spoon to water? A Coldness moves B
Continue readingChapter 3: Atomic Structure and Basic Chemistry (Set-5)
In a simple atom model, which part stays at the center and holds most of the atom’s mass A Valence
Continue readingChapter 3: Atomic Structure and Basic Chemistry (Set-4)
An ion is written as X²⁺ and has 10 electrons; what is the atomic number of element X A 8
Continue readingChapter 3: Atomic Structure and Basic Chemistry (Set-3)
An atom of chlorine becomes chloride ion; what must happen to its outer electrons during this change A Gains one
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In a basic atom model, which particle count decides the element name even if neutrons change A Neutron number B
Continue readingChapter 3: Atomic Structure and Basic Chemistry (Set-1)
In an atom, which part contains protons and neutrons A Electron shells B Valence layer C Nucleus D Atomic orbitals
Continue readingChapter 2: Matter and Materials (Set-5)
A sealed syringe filled with air resists compression more at smaller volume mainly because gas pressure increases due to… A
Continue readingChapter 2: Matter and Materials (Set-4)
A gas becomes liquid inside an LPG cylinder mainly because it is stored under what condition? A Very low pressure
Continue readingChapter 2: Matter and Materials (Set-3)
Why does perfume smell spread faster in a warm room? A Particles stop moving B Stronger attraction forces C Faster
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