ETALS AND NON METALS, CLASS 7th, CBSE Board

METALS AND NON METALS, CLASS 7th, CBSE Board

1. METALS AND NON- METALS MS. ANN MARY K MARTIN

2. CHEMICAL PROPERTIES OF METALS AND NON-METALS REACTION WITH OXYGEN METALS:

3. 1) METAL OXIDES ARE ______ IN NATURE : ANS: BASIC 2) METAL OXIDES TURN RED LITMUS TO ______ ANS: BLUE

4. 3) Metals like _____ and _____react vigorously with oxygen even at room temperature forming their oxides. ANS: SODIUM AND POTASSIUM 4 ) Write the reaction for sodium reacting with oxygen

5. 5) Magnesium burns in the air producing magnesium oxide. WRITE THE REACTION. 6) What is corrosion?

6. NON- METALS: Is SO2 ACIDIC OR BASIC? 1) NON-METAL OXIDES ARE ______ IN NATURE: ANS: ACIDIC

7. 2) METAL OXIDES TURN BLUE LITMUS TO ______ ANS: RED REACTION WITH WATER: 1) METALS REACT WITH WATER TO FORM ______ ALONG WITH EVOLUTION OF _______. ANS: HYDROXIDE, HYDROGEN GAS

8. AND POTASSIUM WRITE THE REACTIONS zinc

9. https://youtu.be/9bAhCHedVB4?si=C6yU_3uODJbXAmmu

10. DISPLACEMENT REACTIONS: THE REACTION IN WHICH A MORE REACTIVE METAL DISPLACES A LESS REACTIVE METAL FROM ITS SALT SOLUTION IS CALLED A REACTION.

11. No reaction

12. P LEASE S END C ATS M ONKEYS A ND Z EBRAS I NTO L OVELY H APPY C AGES S OON OF G OLD, P LATINUM