Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 43 - 47 of 144

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: 43

» Chemistry » Metals & Non Metals

MCQ▾

Question

A transition metal X got its name from a moon of the planet Saturn. It was discovered by William Gregor. It can be extracted from its ore by Kroll process. Can you identify this metal X?

Choices

Choice (4) Response

a.

Francium

b.

Titanium

c.

Uranium

d.

Radium

Question number: 44

» Chemistry » Structure of Atom

Match List-Ⅰ List-Ⅱ▾

Question

Match the following:
List-Ⅰ (Name) List-Ⅱ (Formula)

(A)

Bleaching powder

(i)

Equation

(B)

Caustic soda

(ii)

HgS

(C)

Vermillion

(iii)

Na2B4O7⋅10H2O

(D)

Borax

(iv)

Equation

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (ii)
  • (iv)
  • (i)

b.

  • (i)
  • (iv)
  • (ii)
  • (iii)

c.

  • (i)
  • (ii)
  • (iii)
  • (iv)

d.

  • (iv)
  • (ii)
  • (iii)
  • (i)

Question number: 45

» Chemistry » Acid Bases and Salt

MCQ▾

Question

Observe the given figures and choose the correct alternative.

Three beakers containing different liquid

Three Beakers Containing Different Liquid

Find the correct relation given in options

Choices

Choice (4) Response

a.

pH of C > pH of A and B

b.

pH of A > pH of Band C

c.

pH of B > pH of A and C

d.

pH of A B and C are equal

Question number: 46

» Chemistry » Metals & Non Metals

MCQ▾

Question

Consider the following statements

I. Lanthanide series includes metals from atomic number 57 to 71.

II. Lanthanum and Lutetium are the first and last metals of lanthanides.

Which of the above statement (s) is/are correct?

Choices

Choice (4) Response

a.

Only I

b.

Only II

c.

I and II

d.

None of the above

Question number: 47

» 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

f Page
Sign In