NDA General Ability 13 April 2025 | Chemistry Question 140 | General Science

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Physics

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Chemistry

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NDA General Ability 13 April 2025

MCQ (Single Correct Answer)

-1.33

Which one of the following statements is NOT correct ?

The molecules of soap are sodium or potassium salts of long chain fatty acids

The molecules of soap contain both hydrophobic and hydrophilic ends

Detergents are more effective than soaps in hard water

In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside

NDA General Ability 13 April 2025

MCQ (Single Correct Answer)

-1.33

Element X forms a chloride with the formula XCl₂, which is a solid with high melting point. X would most likely be in the same group of periodic table as

NDA General Ability 13 April 2025

MCQ (Single Correct Answer)

-1.33

Which one of the following oxides is a neutral oxide?

CO₂

Na₂O

MgO

NDA General Ability 13 April 2025

MCQ (Single Correct Answer)

-1.33

Which one of the following is also known as Dry ice in its solid form?

SiO₂

CO₂

CaO

MgO

Questions Asked from Marks 4

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