Unified Council - NSTSE PDF Sample Papers for Class 10
Class 10 sample paper & practice questions for National Level Science Talent Search Examination (NSTSE) level 1 are given below. Syllabus for level 1 is also mentioned for these exams. You can refer these sample paper & quiz for preparing for the exam.
Q.1 |
Observe the given figure carefully.  |
| a) |
Metal X - Copper |
| b) | Metal X - Iron |
| c) | Metal X - Iron |
| d) | Metal X - Zinc |
Q.2 |
Values of k for which the quadratic equation 2x2 - kx + k = 0 has equal roots is: |
| a) |
0 only |
| b) | 4 |
| c) | 8 only |
| d) | 0, 8 |
Q.3 |
G has children K, I and J. L and M are children of K and K is married to N. What is the relation between M and G? |
| a) |
Grandson |
| b) | Sister |
| c) | Daughter |
| d) | Father |
Q.4 |
In the figure, the pair of tangents AP and AQ drawn from an external point A to a circle, which has a centre at O are perpendicular to each other and the length of each tangent is 5 cm. Then the radius of the circle is:  |
| a) |
10 cm |
| b) | 7.5 cm |
| c) | 5 cm |
| d) | 2.5 cm |
Q.5 |
When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor: |
| a) |
4.5 kΩ |
| b) | 4.2 kΩ |
| c) | 4.8 kΩ |
| d) | 3.8 kΩ |
Q.6 |
What should be added to each of the four numbers 6, 14, 18, 38 to make them proportional? |
| a) |
1 |
| b) | 2 |
| c) | 3 |
| d) | 4 |
Q.7 |
Which of the following has evolved mainly as a result of the artificial selection? |
| a) |
Dark colouring of the peppered moth near industrial areas |
| b) | Increased production of antibiotics by the fungus Penicillium sp. |
| c) | Increased resistance of houseflies to the insecticide DDT |
| d) | Increased tolerance of lichens to heavy metals on tree bark around mine workings |
Q.8 |
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains: |
| a) |
NaCl |
| b) | HCl |
| c) | LiCl |
| d) | KCl |
Q.9 |
Which of the following gases produced when cold water is added on calcium carbide? |
| a) |
C2H2 |
| b) | C2H4 |
| c) | C2H6 |
| d) | C3H8 |
Q.10 |
Among O, C, F, Cl, Br, the correct order of increasing atomic radii is |
| a) |
F, O, C, Cl, Br |
| b) | F, C, O, Cl, Br |
| c) | F, Cl, Br, O, C |
| d) | C, O, F, Cl, Br |
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Answers to Sample Questions from Olympiad Success:
Q.1 : d | Q.2 : d | Q.3 : a | Q.4 : c | Q.5 : c | Q.6 : b | Q.7 : a | Q.8 : b | Q.9 : a | Q.10 : a
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