Match column A with column B. Column-A Column-B 1. Solid to gas a. Permanent 2. Chemical change b. Sublimation 3. Formation of crystals c. Goldstein 4. Chemical equation d. Crystallization 5. Discovery of protons e. Chemical formulae

Sublimation: Solid to gas. It is the process of direct conversion of solid into a gas without forming liquid. A chemical change: Permanent. It is a permanent change in which one or more substances react with other substances to form new substances. Formation of crystals: Crystallization: It is a method of separating a pure solid in the form of its crystals from its solution. Chemical equation: chemical formulae: It is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactants are given on the left-hand side and the products on the right-hand side with a plus sign between the entities in both the reactants and the products and an arrow that points towards the products, and shows the direction of the reaction. Discovery of protons: Goldstein. Proton was discovered by German chemist Eugen Goldstein. Column-A Column-B 1. Solid to gas b. Sublimation 2. Chemical change a. Permanent 3. Formation of crystals d. Crystallization 4. Chemical equation e. chemical formulae 5. Discovery of protons c.Goldstein

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q E

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Write the molecular formula of the zinc oxide.

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Important Questions on Sample Test Paper 1

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q A

Which of the following is not the basic property of matter?

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q A

Which of the following is not the characteristic of a chemical change?

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q A

Which of the following technique is used to separate chalk particles from rice and chalk mixture?

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q A

The nuclear model of the atom was proposed by

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q A

The valency of hydrogen is

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q B

_____ is the process used to separate mixture containing particles of different size, shape or colour.

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Its All About Science - Chemistry>Chapter 10 - Sample Test Paper 1>Exercise 1>Q C

Match column A with column B.

Column-A	Column-B
1. Solid to gas	a. Permanent
2. Chemical change	b. Sublimation
3. Formation of crystals	c. Goldstein
4. Chemical equation	d. Crystallization
5. Discovery of protons	e. Chemical formulae