RAILWAY GROUP D ASKED QUESTION

๐Ÿ”ฅ๐Ÿ”ฅRAILWAY GROUP -D ASKED QUESTION๐Ÿ”ฅ๐Ÿ”ฅ

๐Ÿ”ฐSCIENCE


✅️Valency of Halogen Group? – 1

✅️Which is the inert gas in the fourth period?Kr

✅️Largest joint of body= Knee

✅️Valency of nitrogen ? – 3

✅️Scientific name of Apple? – Malus

✅️Scientific name of Elephant? – Loxodonta


✅️What will be the electro-negativity on moving left to right in the Periodic table? Increase

✅️King of Acid – H2SO4

✅️What is the chemical name of CaO? – Calcium oxide

✅️What is the chemical name of H2SO4? – Sulfuric acid

✅️Male Chromosomes are represented by? – 44+XY / 22+XY

✅️Period that does not Contain any Metalloids? – 1st Period and 7th Period

✅️Which acid is present in Lemon? – Citric Acid

✅️4th Period has how many elements? – 18 elements

✅️Ethanoic acid has which group? -COOH

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