10th Science Carbon Compounds Test 2 PDF

## PARTH MOMAYA **Question Paper** **Science - I** **Carbon compounds - Test 2** **Chapter: 9** **Std.: 10 (English)** **Date: 11-Dec-2023** **Marks: 20** **Time: 1 hrs** **Q.1** **A) Choose the correct alternative and rewrite the sentence** 1) Unsaturated hydrocarbons containing a carbon-carbo...

## PARTH MOMAYA **Question Paper** **Science - I** **Carbon compounds - Test 2** **Chapter: 9** **Std.: 10 (English)** **Date: 11-Dec-2023** **Marks: 20** **Time: 1 hrs** **Q.1** **A) Choose the correct alternative and rewrite the sentence** 1) Unsaturated hydrocarbons containing a carbon-carbon triple bond are called \_\_\_\_\_\_\_. a. alkanes b. alkenes c. alkynes d. alkanol **B) Answer the following questions.** 1) Find co-related terms Nonstick cookware : \_\_\_\_\_\_\_\_\_\_\_\_\_ :: Thermocol articles: polystyrene 2) State true or false. The natural macromolecules namely, polysaccharides, proteins and PVC are the supporting pillars of the living world. **Q.2** **A) Give scientific reason. (Any one)** 1) Carbon forms an extremely large number of compounds. 2) Carbon atom does not form C4+ cation. **B) Answer the following questions. (Any two)** 1) Distinguish between Ionic bond and Covalent bond 2) Short notes Write short note on Combustion of Carbon Compounds. 3) Homopolymer **Q.3** **Answer the following questions. (Any two)** 1) Observe the diagram and answer the questions. * A diagram depicting a test tube with contents of a mixture of ethanoic acid, ethanol and sulphuric acid, heating it with a burner and a beaker of water with a wire gauge* a. What reaction is shown in the above diagram? b. Write the balanced chemical equation. **Q.4** **c. Write the name of the product produced in the above reaction and write its one use.** **d. Write the name of the catalyst used in the above reaction.** **e. What is the special characteristic of the group that is formed in this reaction?** 2) What is meant by gasohol and vinegar? What are their uses? 3) Complete the paragraph: (carbon atoms, ethyne, hydrocarbon atoms, covalent, ethane, decrease, ethene, increases) Two carbon atoms can be bonded together by one, two or three \_\_\_\_\_\_\_\_\_\_ bonds. These are called single bond, double bond, and triple bond respectively. Due to the ability of \_\_\_\_\_\_\_\_\_\_\_ to form multiple bonds as well as single bonds, the number of carbon compounds \_\_\_\_\_\_\_\_\_\_\_\_. For example, there are three compounds, namely, \_\_\_\_\_\_\_\_\_\_\_\_ (CH2=CH2) and \_\_\_\_\_\_\_\_\_\_\_\_ (CH3-CH3), \_\_\_\_\_\_\_\_\_\_\_\_ CH = C which contain two carbon atoms. **Answer the following questions. (Any one)** 1) a. Identify saturated and unsaturated hydrocarbon from the given structural formula. * Structure 1: $H-C-C-H$ with $H$ bonds at each carbon atom. * Structure 2: $C=C$ with one $H$ bond at each carbon atom* b. Draw electron dot structure for (1) and (2) c. Define Homologous series 2) a. Draw the electron-dot structure of Methane. b. Define homologous series. c. Write the IUPAC names of the following. i. $CH_3-CH_2 – COOH$ ii. $CH_3 - CHOH – CH_3$ iii. $CH_3 - CO – CH_2 - CH_3$