NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 893 - 900 of 1998
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Question 893
Question MCQ▾
Which one of the following does not show Tyndall effect?
Choices
Choice (4) | Response | |
---|---|---|
a. | Milk | |
b. | Blood | |
c. | Sugar solution | |
d. | Emulsion |
Question 894
Question MCQ▾
What do we observe when colloidal solution is observed under ultramicroscope?
Choices
Choice (4) | Response | |
---|---|---|
a. | Light scattered by colloidal particles | |
b. | Size of colloidal particles | |
c. | Shape of colloidal particles | |
d. | Relative size of colloidal particles |
Question 895
Question MCQ▾
Which of the following is not double membranous organelles
Choices
Choice (4) | Response | |
---|---|---|
a. | Mitochondria | |
b. | Nucleus | |
c. | Lysosomes | |
d. | Chloroplast |
Question 896
Question MCQ▾
The diameter of colloidal particles range from
Choices
Choice (4) | Response | |
---|---|---|
a. | 10-9m to 10-12 m | |
b. | 103 m to 10-3 m | |
c. | 10-3 m to 10-6 m | |
d. | 10-6 m to 10-9 m |
Question 897
Question MCQ▾
If 7,5, 9 and 2 occur with frequencies 3,1, 4 and 2 respectively, then the arithmetic mean is
Choices
Choice (4) | Response | |
---|---|---|
a. | 10 | |
b. | 5.6 | |
c. | 2.3 | |
d. | 6.6 |
Question 898
Question MCQ▾
The rational number between and is:
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | 0.25 | |
d. | All a., b. and c. are correct |
Question 899
Question MCQ▾
If the arithmetic mean of 6, 8,5, 7, x and 4 is 7, then x is
Choices
Choice (4) | Response | |
---|---|---|
a. | 8 | |
b. | 4 | |
c. | 6 | |
d. | 12 |