Acids, Bases and Salts (NSO Level 1- Science Olympiad (SOF) Class 10): Questions 1 - 5 of 83
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Question number: 1
» Acids, Bases and Salts
Question
Which of the following is incorrect for acid?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Acid turns red litmus blue. | |
b. | All the compounds containing are acidic. | |
c. | All the acid have sour test. | |
d. | All the acids generates H-gas on reacting with metal | |
Question number: 2
» Acids, Bases and Salts
Question
Copper oxide in a beaker and add slowly while stirring,
The color of the solution is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Blue to green color | |
b. | Blue to greenish blue | |
c. | Blue to black color | |
d. | No change | |
Question number: 3
» Acids, Bases and Salts
Question
Assertion (Ꭺ)
Reason (Ꭱ)
The metal combines with remaining part of the acid and forms compounds called salt.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
c. | Both Ꭺ and Ꭱ are false | |
d. | Ꭺ is true but Ꭱ is false | |
Question number: 4
» Acids, Bases and Salts
Question
The acidic solution was placed on a strip of paper. The color of the strip.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Turned green | |
b. | Turned red | |
c. | Turned light pink | |
d. | Did not change | |
Question number: 5
» Acids, Bases and Salts
Question
When is reacts with the resultant we get and , on passing through lime water we get the precipitate of
Find out that what is respectively?
Choices
| Choice (4) | Response | |
|---|---|---|
a. |
| |
b. |
| |
c. |
| |
d. |
| |