MP TET · Mathematics and Science (Varg-2)
Atoms, molecules, elements, compounds and mixtures.
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Q1 · Matter and its Nature · EASY
A student finds that a substance cannot be broken down into simpler substances by any chemical method. What type of substance is this?
Q2 · Matter and its Nature · MEDIUM
Which one of the following correctly describes the composition of air?
Q3 · Matter and its Nature · MEDIUM
A teacher shows students three samples: (i) saltwater, (ii) sugar solution, (iii) milk. She asks which of these are mixtures. Which is the correct answer?
Q4 · Matter and its Nature · HARD
Two elements X and Y react chemically to form substance Z. The mass of Z formed is exactly equal to the sum of masses of X and Y used. 10 g of X always reacts with 5 g of Y to form 15 g of Z. Which law does this illustrate, and what is substance Z?
Q5 · Matter and its Nature · MEDIUM
When ice melts to form water, which of the following statements is correct?