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JEE Main 202324 JanuaryMorning Shift
Exam
JEE Main
Year
2023
Date
24 January
Shift
Morning Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2023 · 24 January · Morning Shift · Chemistry · s Block Elements

Match Column I with Column II Column I Column II A Soda ash I CaSO...

Match Column I with Column II

Column I Column II
A Soda ash I CaSO4{CaSO}_{4}
B Chlorophyll II Ca(OH)2Ca{\left(OH\right)}_{2}
C Used in Whitewashing III Na2CO3{Na}_{2}{CO}_{3}
D Dentistry, ornamental work IV Mg2+{Mg}^{2 +} ions

Options

  1. A

    A – III, B – IV, C – I, D – II

  2. BA – II, B – I, C – III, D – IV
  3. CA – III, B – I, C – II, D – IV
  4. DA – II, B – III, C – IV, D – I

Correct answer

A.

A – III, B – IV, C – I, D – II

Step-by-step solution

Sodium carbonate (Na2CO3)\left({Na}_{2}{CO}_{3}\right) also known as washing soda, soda ash and soda crystals. In chlorophyll the central ion is magnesium, and the large organic molecule is a porphyrin. Whitewash, lime paint is a type of paint made from slaked lime (calcium hydroxide,Ca(OH)2Ca ( OH{)}_{2}) or chalk calcium carbonate, (CaCO3{CaCO}_{3}). CaSO4{CaSO}_{4} is used in dentistry and ornamental work.
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