NSO Level 1- Science Olympiad (SOF) Class 7: Questions 280 - 284 of 597
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Question number: 280
Question
Vanilla is an ________ indicator.
Choose the correct option which correctly fills the blank.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Synthetic Indicator | |
b. | Olfactory Indicator | |
c. | Universal Indicator | |
d. | Visible Indicator | |
Question number: 281
Question
Match the Column I with Column II and select the correct option from the codes given below.
| List-Ⅰ (Material) | List-Ⅱ (Smell when Burnt) |
|---|---|
(A) Silk | (i) Burning Hair. |
(B) Nylon | (ii) Burning Plastic. |
(C) Cotton | (iii) Burning Paper. |
Choices
| Choice (4) | Response | |
|---|---|---|
| ||
a. |
| |
b. |
| |
c. |
| |
d. | All of the above | |
Question number: 282
Question
An experiment is performed in which china rose is used as an indicator with test solution being lime juice. The result shows change in color. Which of the following color is observed?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Pink Color | |
b. | Magenta | |
c. | Colorless | |
d. | Green Color | |
Question number: 283
» Nutrition in Plants and Animals
Question
Light is absorbed by which of the following pigments for photosynthesis?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Anthocynin | |
b. | Pheophytin | |
c. | Chlorophyll | |
d. | Question does not provide sufficient data or is vague | |
Question number: 284
Question
Why antacids are prescribed by doctors for problems related to hyperacidity?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Because it contains weak acid | |
b. | Because it contains base | |
c. | Because it contains strong acid | |
d. | None of the above | |