NSO - Mock Test...

Directions: Read the following information carefully and answer the question.

If the code for FOOTBALL is 8 and the code for HOCKEY is 6, then what is the code for BADMINTON?

Directions: In the following numbers, one number is incorrect. Find out the odd number.

54, 9, 15, 6, 24, 4, 16

Directions: Read the following information carefully and answer the question given below.

Amit was looking at a photograph in his house nostalgically, it was a photo of a young man. While pointing at it Amit said, "I have no brother or sister but that man's father is my father's son." What was the relation of Amit to the man in the photograph?

Directions: Read the following information carefully and answer the question given below.

If Moe is the brother of June, the sister of June is May,Solace is the brother of Moe. The brother of Parul is Justice and the daughter of Solace is Parul, then who is the uncle of Justice?

Directions: There is some relationship between the two pairs of numbers on the left of the sign (: :). The same relationship exists between the two terms to its right, of which one is missing. Find the missing term from the given alternatives.

26 : 63 : : 511 : ____

Directions: Read the following information carefully and answer the question given below:

E, F, G, H, I, J, K and M are sitting around a circle and are facing the centre.
E is second to the right of I, who is the neighbour of F and K.
H is not a neighbour of E.
J is a neighbour of K.
F is not between H and M. M is not between J and H.

Who is next to the left of K?

Directions: Read the following information carefully and answer the question given below:

E, F, G, H, I, J, K and M are sitting around a circle and are facing the centre.
E is second to the right of I, who is the neighbour of F and K.
H is not a neighbour of E.
J is a neighbour of K.
F is not between H and M. M is not between J and H.

Who is sitting to the immediate left of G?

Directions: In the question below is given a figure followed by four alternatives. Choose the correct mirror image of the given figure.

Directions: The second figure of the problem figures bears a certain relationship to the first figure. Similarly, one of the figures in the answer figures bears the same relationship to the third figure. You have to select the figure from the set of answer figures which would replace the sign of question mark (?).

Which number should come next in the given series?

600, 650, 702, 756, ?

A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointed in the same direction. Then,

What length of the copper wire of cross sectional area 0.01 mm² and resistivity 1.7 × 10^-8 Ωm will be required to make a resistance of 1.7 kΩ?

An elongated object is placed in front of a concave mirror between its pole and focus. As the object moves towards the pole,

(I) Speed of the image is more than the speed of the object.
(II) The image becomes enlarged.
(III) The image approaches the mirror.
(IV) The image becomes diminished.Choose the correct statements:

A metallic wire is connected in series with a DC battery source of +12 V. If the radius and length of the wire are doubled, what effect will it have on the resistance of the wire and current through the wire?

A lens is used as a simple magnifier having magnification 5. Find the focal length of the lens.

Consider the following diagram:


In the given diagram, why does the coin placed at the bottom of the beaker containing water appear to be raised. Choose the correct reason from the following options.

It is not advised to store curd and other sour substances in copper or brass vessels because

The following apparatus was set up to carry out a reaction between zinc granules and sulphuric acid. The gas formed as one of the products was trapped in the soap bubbles, which exploded with a pop sound when a burning candle was brought near. Identify the gas.

The reaction of NaCl with H₂SO₄ yields HCl gas, which has no effect on the litmus paper.



This is because

The electron dot structure of CO₂ is as follows:



How many electrons are shared between the carbon atom and each of the oxygen atoms?

Observe the given electron dot structure of sulphur and comment on the atomicity and the shape of the molecule:

Which of the following statements is/are the correct reason(s) for rubbing a magnesium ribbon with sand paper before burning it in air?

I. The surface is covered with a layer of magnesium oxide.
II. Cleaning gives a better reaction as magnesium is a moderately reactive metal.

Consider the balanced equation of the reaction between the aqueous solutions of barium chloride and sodium sulphate:

BaCl₂ + Na₂SO₄ BaSO₄ + 2NaCl

Which of the following species can be separated from the mixture as a solid precipitate?

Why does a solution of copper sulphate change its colour when an iron nail is dipped into it?

What is the most significant limitation of Dobereiner's classification of elements?

_______ and ________ are the two elements that show chemical reactions similar to those shown by magnesium.

The position of an element in the periodic table is related to its electronic configuration. In this context, identify the correct statement among the following.

How many moles of iron will react with excess of water to produce four moles of hydrogen gas?

Fe + 4H₂O → Fe₃O₄ + 4H₂

Look at the following reaction equations and choose which one shows double displacement?

I. 2KBr (aq) + Bal₂ (aq) → 2KI (aq) + BaBr₂ (aq)
II. 2KBr (aq) + F₂ (aq) → 2KF (aq) + Br₂ (aq)

I.
II.
III.

Which of these molecules will have the lowest boiling point?

In the reaction of zinc granules with sulphuric acid, how many moles of hydrogen gas are produced per mole of the acid.

Zinc + Sulphuric acid → Zinc sulphate + Hydrogen

Gibberellins were discovered by a Japanese botanist while studying the "foolish seedling" disease in rice. They were first isolated from the fungus known as

What kind of epithelium is found in our respiratory system?

It is a biological fact that human stomach produces acid. Which of the following is not a role of hydrochloric acid produced by the stomach?

Villi are adapted for the maximum absorption of digested food molecules. Which property makes them suitable for the same?

Site of transfer of oxygen and other nutrients from the bloodstream to other tissues in the body is

It is practically impossible to kill a sponge. This is due to the process of

"These are very beneficial for an organism while reproducing. These are distributed easily by air to far-off places to avoid competition at one place. Large numbers are produced in a single sporangium and they are also covered with thick walls to avoid dehydration."

From the passage of the arguments given above, find out the unit of reproduction being discussed.

Study the food chain given below.


What percentage of energy is transferred from sun to grass?

Consider the statements given below regarding biomagnification and choose the correct option that follows.

Statement I: Biomagnification is the increasing concentration of a substance, such as a toxic chemical in the tissues of an organism.
Statement II: Bioaccumulation occurs within a trophic level whereas biomagnification occurs across trophic (food chain) levels.

A highly polluted city will not show the growth of

The presence of which of the following metals causes the teeth of the children to discolour?

The structure that prevents the acidic contents of the stomach from moving upward into the esophagus is

The primary form of sugar transported from the site of photosynthesis to the rest of the plant is

The pathway which is common to both aerobic and anaerobic pathways of respiration is

Kiera was working on a Science experiment in lab. She cleaned the magnesium ribbon about 2 cm long by rubbing it with sandpaper. She held it with a pair of tongs, burned it using a spirit lamp or burner and collected the ash so formed in a watch-glass.

What would you observe from the given experiment in the end?

Heat dissipated by a wire having length L and area A connected to the source of voltage V in time t is H. When the same wire is stretched to double its length and is again connected to the same source, then the heat dissipated in it in the same time interval is

Match the below mentioned parts of human heart in column I with their appropriate functions in column II.

Urea, the principal nitrogenous excretory compound in humans, is synthesised

According to the given image above, which of the following is/are precaution(s) that is/are true to be considered in order to determine the focal length of a concave mirror by obtaining the image of a distant object?

(i) The base of the concave mirror stand and the screen should not be parallel to the metre scale.
(ii) The concave mirror should be fixed in the vertical plane.
(iii) Place the screen behind the mirror.