1) In the flame test which metal burns with a lilac flame? a) Potassium b) Sodium c) Calcium d) Copper 2) In the flame test which metal burns with a Yellow flame? a) Potassium b) Sodium c) Calcium d) Copper 3) In the flame test which metal burns with an Orange-red flame? a) Potassium b) Sodium c) Calcium d) Copper 4) In the flame test which metal burns with a Green flame with white flashes? a) Potassium b) Sodium c) Calcium d) Copper 5) What is the name of the acid used in the flame tests? a) vinegar b) sulfuric acid c) citric acid d) hydrochloric acid 6) What is the name of the alloy used to make the metal loop?  a) Alloy b) Nichrome c) Brass d) Steel 7) The colours of the metals are used in? a) Fire works b) Baking c) Making paper d) To cure sore throats 8) What safety rule must you follow when carrying out the flame test experiment? a) Wear an apron b) Wear gloves c) Wear a face mask d) Wear goggles

Flame tests

สั่งพิมพ์
ฝัง

ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

สลับแม่แบบ

คืนค่าการบันทึกอัตโนมัติ: ใช่ไหม