Chemistry-Periodic Classification of Elements (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 7 - 12 of 23

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1058 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 7

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

An element is soft and can be cut with a knife. It is very reactive and cannot be kept open in the air. It reacts vigorously with water. Can you name this element?

Choices

Choice (4) Response

a.

Mg

b.

S

c.

P

d.

Na

Question number: 8

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

What is the most correct name for the ionic compound formed by Equation ?

Choices

Choice (4) Response

a.

Iron (II) chloride

b.

Iron (I) chloride

c.

Iron (III) chloride

d.

Iron (IV) chloride

Question number: 9

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation . This is an unbalanced equation. Write its balanced equation.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 10

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Equation .

It is an example of

Choices

Choice (4) Response

a.

decomposition reaction

b.

displacement reaction

c.

double displacement reaction

d.

redox reaction

Question number: 11

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

When a metal ‘M’ reacts with oxygen, following reaction takes place.

Equation

This equation represents

Choices

Choice (4) Response

a.

oxidation reaction

b.

reduction reaction

c.

combination and oxidation reaction

d.

displacement and oxidation reaction

Question number: 12

» Chemistry » Periodic Classification of Elements

MCQ▾

Question

Which of the following statements about the modern periodic table is true?

Choices

Choice (4) Response

a.

It has 18 vertical columns called periods

b.

It has 7 vertical columns called periods

c.

It has 7 horizontal rows called groups

d.

It has 18 horizontal rows called periods

f Page
Sign In