NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension: Questions 794 - 797 of 816

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Question 794

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Question

MCQ▾

In the given figure, are congruent triangles. , then find the value of .

A triangle having two congruent triangles

A Triangle Having Two Congruent Triangles

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Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 795

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Appeared in Year: 2013

Question

MCQ▾

An element X has 7 electrons in its L shell. What is true about the element X?

I. It belongs to period 9 of modern periodic table.

II. Its atom contains 9 protons.

III. It has a Valency of 7.

IV. Its atoms can accept an electron to acquire noble gas configuration.

Choices

Choice (4)Response

a.

I and II

b.

III and IV

c.

II and III

d.

II and IV

Question 796

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Appeared in Year: 2013

Question

MCQ▾

An element X combines with hydrogen to form a compound . The element X is placed on the right side of the periodic table. What is true about the element X?

I. Has valence electrons.

II. Is a metal and is solid.

III. Is a non-mental and is a gas.

IV. Has a 5 valence electrons E

V. reacts with water to form a basic compound.

Choices

Choice (4)Response

a.

I, II and III

b.

III, IV and V

c.

V, I and II

d.

II, III and IV

Question 797

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Question

MCQ▾

An electron moving with uniform velocity in x direction enters a region of uniform magnetic field along y direction. Which of the following physical quantity (ies) is (are) non-zero and remain constant?

A graph of moving electron along x axis

A Graph of Moving Electron Along X Axis

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I. Velocity of the electron.

II. Magnitude of the momentum of the electron.

III. Force on the electron.

IV. The kinetic energy of electron.

Choices

Choice (4)Response

a.

Only I and II

b.

All four

c.

Only II and IV

d.

Only III and IV