Exams

Which of the following elements has a total of 3 shells with 8 electrons in the last orbit?

The length of one side of a rhombus is 41 cm and its area is 720 sq.cm. What is the sum of the lengths of its diagonals?

Atomic numbers of four elements are as follows : F(9), P(15), Cl(17), Ar(18). Which of the following two elements would be chemically similar?

Except Helium, all noble gases have how many electrons in the outermost shell?

In the following figure, rectangle represents Web designers, circle represents Athletes, triangle represents Sculptors and square represents Asians. Which set of letters represents Asians who are not Athletes?

In a rhombus _____.

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) Glaciers are receding and the temperature rise of the world is more than last year this time.
(II) Pollution level of the Earth is rising a lot resulting in avalanches.

Conclusions:
(I) Pollution is resulting into hike in temperature of the world.
(II) Pollution is the only reason for depletion of the nature.

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:
(I) The water pollutants are rising slowly and spoiling the sanctity of water.
(II) Main cause of water pollution is industrialization and lack of sustainable approach towards environment.

Conclusions:
(I) Industries are mixing all the left-over slurries into the water body nearby causing immense pollution.
(II) Future generations are need to be thought about before getting involved in pollution causing activities.