Science Content-Basic Chemistry [CTET (Central Teacher Eligibility Test) Paper-II Science]: Questions 1 - 5 of 46
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Question 1
Appeared in Year: 2012
Question MCQ▾
When carbon dioxide is passed through clear limewater solution, it turns milky. The milky appearance of limewater is due to (Jan)
Choices
Choice (4) | Response | |
---|---|---|
a. | Presence of soluble calcium carbonate | |
b. | Presence of insoluble calcium carbonate | |
c. | Curdling of milk due to lime in lime water | |
d. | Presence of impurities in limewater |
Question 2
Appeared in Year: 2012
Question MCQ▾
PET bottles and jars are commonly used for storing edible items. PET is a very familiar form of (Jan)
Choices
Choice (4) | Response | |
---|---|---|
a. | Polyester | |
b. | Rayon | |
c. | Acrylic | |
d. | Polyamide |
Question 3
Question MCQ▾
Aqueous solution of which of the following oxides will change the color of red litmus to blue?
Choices
Choice (4) | Response | |
---|---|---|
a. | Potassium oxide | |
b. | Sulphur dioxide | |
c. | Phosphorus oxide | |
d. | Carbon dioxide |
Question 4
Appeared in Year: 2011
Question MCQ▾
While diluting sulphuric acid, it is recommended that the acid should be added to water because (June)
Choices
Choice (4) | Response | |
---|---|---|
a. | Acid may break the glass container | |
b. | Acid has strong affinity for water | |
c. | Dilution of acid is highly endothermic | |
d. | Dilution of acid is highly exothermic |
Question 5
Question MCQ▾
When sunlight flashes on the silver chloride it turns into grey color from white color, this is the example of
Choices
Choice (4) | Response | |
---|---|---|
a. | Displacement and redox reactions | |
b. | Combination reaction | |
c. | Double displacement reaction | |
d. | Decomposition reaction |