Question
An element in period 3, whose electron affinity is zero:
An element in period 3, whose electron affinity is zero: (a) Neon (b) Sulphur (c) Sodium (d) Argon
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Chapter 06 – Spectrum | Class 10 Physics Flash Notes
Chapter : Spectrum Board : ICSE Class : X (10) Subject : Physics
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Madhyamik Class 10 Physical Science Solved Paper 2026
Madhyamik Class 10 Physical Science Question Paper Solved 2026 Physical Science Time – Three Hours Fifteen Minutes (First fifteen minutes for reading the Question…
Question
Write the balanced chemical equation for the reaction between acetic acid and sodium bicarbonate. Between jute and polythene, which one is eco-friendly for packaging purposes and why?
Write the balanced chemical equation for the reaction between acetic acid and sodium bicarbonate. Between jute and polythene, which one is eco-friendly…
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Write the balanced chemical equation for the addition reaction of hydrogen with acetylene and mention any two conditions for the reaction.
Write the balanced chemical equation for the addition reaction of hydrogen with acetylene and mention any two conditions for the reaction. [3]
Question
Write how nitric oxide is produced by the oxidation of ammonia with atmospheric oxygen, mentioning the name of the catalyst and the reaction conditions. Write the balanced chemical equation for the reaction.
Write how nitric oxide is produced by the oxidation of ammonia with atmospheric oxygen, mentioning the name of the catalyst and the…
Question
In the extraction of aluminium by electrolysis, what substances are present in the molten mixture besides pure alumina? What are used as the cathode and anode in this electrolysis?
In the extraction of aluminium by electrolysis, what substances are present in the molten mixture besides pure alumina? What are used as…
Question
What is the important conclusion of Moseley’s experiment? What is the importance of this conclusion regarding the periodic table? [2+1]
What is the important conclusion of Moseley’s experiment? What is the importance of this conclusion regarding the periodic table? [2+1]
Question
What is meant by the electronegativity of an element? How does the electronegativity of Group 1 elements in the long periodic table change from top to bottom?
What is meant by the electronegativity of an element? How does the electronegativity of Group 1 elements in the long periodic table…
Question
Explain nuclear fission. Why is nuclear fission essential for nuclear fusion?
Explain nuclear fission. Why is nuclear fission essential for nuclear fusion? [2+1]