Name the tree as per its characteristics: The wood is hard and suitable for ship building.

State your observations when:

Dilute Hydrochloric acid is added to Lead nitrate solution and the mixture is heated.

Differentiate between Mineral-based Industry and Agro-based industry giving one example for each

Explain any three types of cases in which the Supreme Court exercises its Original Jurisdiction.

Study the data of distribution of temperature and rain for station X and answer the questions that follow:

1. Is Station X in the coastal area or in the interior of the country?
2. Calculate the total
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Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given:

1. The ionization potential of Potassium is _____ that of Sodium.
2. The
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State any two advantages of electromagnets over permanent magnets.

With reference to black soil: Name one important crop which grows in this soil.

In the figure given below ‘O’ is the centre of the circle. If QR = OP and ∠ORP = 20°. Find the value of ‘x’ giving reasons.

Distinguish between the following pairs of compounds using the reagent given in the bracket.

1. Manganese dioxide and copper (II) oxide. (using concentrated HCl)
2. Ferrous sulphate solution and ferric
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Solve the following inequation, write down the solution set and represent it on the real number line:

$$-2 + 10x \leq 13x + 10 \< 24 + 10x, x \in Z$$

1. Name the product formed at the anode during the electrolysis of acidified water using platinum electrodes.
2. Name the metallic ions that should be present in the electrolyte when an article made of
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Mention two ways in which the decomposition of waste in open areas can affect human health.

If A = $ \begin{bmatrix} 2 & 3 \\ 5 & 7 \end{bmatrix}, B = \begin{bmatrix} 0 &  4\\ -1 & 7 \end{bmatrix}, C =\begin{bmatrix} 1 &  0 \\ -1 & 4 \end{bmatrix}$,  find AC + B² – 10C.

A ray of light travels from water to air as shown in the diagram given below:

1. Copy the diagram and complete the path of the ray. Given the critical angle for water is 48°.
2. State the condition so
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