Metals are good __________ (oxidizing agents / reducing agents) because they are electron __________ (acceptors/ donors).

With reference to the Second World War and the Non-Aligned Movement, answer the following:

1. Explain briefly three reasons for the Dissatisfaction with the Treaty of Versailles.
2. State any three
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The vertices of a ∆ABC are A(3, 8), B(–1, 2) and C(6, -6). Find:

1. Slope of BC.
2. Equation of a line perpendicular to BC and passing through A.

Calculate: The volume occupied by 80 g of carbon dioxide at STP.

Name the following: Soil that is rich in iron oxide.

Name the following organic compounds:

1. The compound with 3 carbon atoms whose functional group is a carboxyl
2. The first homologue whose general formula is C_nH_2n
3. The compound that reacts with acetic
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The figure given below is a diagrammatic representation of a part of the cross section of the root in the root hair zone. Study the same and then answer the questions that follow:

1. Name the parts
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If the power of a motor be 100 kW, at what speed can it raise a load of 50,000 N?

"Though Uttar Pradesh has the largest number of sugar mills yet Maharashtra is the largest producer of sugar." Give any two reasons to justify the statement.

Calculate the percentage of water of crystallization in CuSO₄.5H₂O (H = 1, O = 16, S = 32, Cu = 64)

Give one Geographical reason: Sprinkler irrigation is practised in arid and semi-arid regions

If the straight lines 3𝑥 - 5𝑦 = 7 and 4𝑥 + 𝑎𝑦 + 9 = 0 are perpendicular to one another, find the value of a.

To increase the pH value of a neutral solution, we should add:

1. an acid
2. an acid salt
3. an alkali
4. a salt

Find the value of ‘x’ and ‘y’ if:

40 students enter for a game of shot-put competition. The distance thrown (in metres) is recorded below:

Use a graph paper to draw an ogive for the above distribution. Use a scale of 2 cm = 1 m on one...

Give two ways in which rail transport is useful for the people of India.