Download App

Science True-False

Metals and Non-Metals · CBSE STD 10 (CBSE - English Medium). 6 questions.

Questions

True-False

🎯

Test yourself on this topic

6 questions · timed · auto-graded

Question 11 Mark
All the non-metals which are above hydrogen in the activity series, displaces hydrogen from dilute acids. [True/ False]
Answer
True.
Explanation:
The series of metals arranged in the decreasing order of their reactivity is called the activity or reactivity series. The most reactive metal is placed at the top, and the least reactive one is placed at the bottom of the series. Metals above hydrogen may displace.
View full question & answer→
Question 21 Mark
Non-metals can exist in all three physical states, i.e. solid, liquid and gases. [True/ False]
Answer
True.
Explanation:
Three states of matter exist-solid, liquid, and gas.
View full question & answer→
Question 31 Mark
State whether the following statement is true or false:
The aqueous solution of an ionic compound conducts electricity because there are plenty of free electrons in the solution.
Answer
False (It should be ‘ions’ in place of ‘electrons’).
View full question & answer→
Question 41 Mark
The electric wires made up of copper and aluminium. [True/ False]
Answer
True.
Explanation:
Such as, copper, aluminum, etc. These metals are used to make wires. Most wires are made out of copper because it conducts electricity with high flexibility and very little resistance.
View full question & answer→
Question 61 Mark
State whether the following statement is true or false :
Non-metals react with dilute acids to produce a gas which burns with a ‘pop’ sound.
Answer
False.
View full question & answer→
Generate Paper FreeAll Metals and Non-Metals topics