Acids, Bases and Salts Sample Questions for Class 7
Question 1
Alfred Wegener was a scientist.
A. Dutch
B. German
C. English
D. Russian
Question 2
Which pH range describes strong acids?
A. 0-7
B. 6-8
C. 11-15
D. 0-4
Question 3
The five specific taste sensations are sweet, sour, salty, bitter, and umami.
A. True
B. False
Question 4
The Allegheny River flows into the Ohio River. Which statement is correct about the two rivers?
A. The Allegheny River is a tributary of the Ohio River.
B. The Ohio River is a tributary of the Allegheny River.
Question 5
Between which of the following atoms is a covalent bond most likely to occur?
A. calcium and lithium
B. sodium and fluorine
C. nitrogen and oxygen
D. helium and argon