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

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Question number: 794

» Mathematics » Basic Geometry

MCQ▾

Question

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

A triangle having two congruent triangles

A Triangle Having Two Congruent Triangles

Find the angle ABD of triangle ADB by using given angles

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 795

» Chemistry » Structure of Atom

Appeared in Year: 2013

MCQ▾

Question

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.

II and III

b.

III and IV

c.

II and IV

d.

I and II

Question number: 796

» Chemistry » Physical and Chemical Changes

Appeared in Year: 2013

MCQ▾

Question

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.

V, I and II

b.

I, II and III

c.

III, IV and V

d.

II, III and IV

Question number: 797

» Physics » Motion and Force

MCQ▾

Question

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

Electron is moving in x direction with uniform velocity then enters to uniform magnetic field

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 II and IV

b.

All four

c.

Only I and II

d.

Only III and IV

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