NSO Level 1- Science Olympiad (SOF) Class 10: Questions 688 - 693 of 986

Access detailed explanations (illustrated with images and videos) to 986 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 688

» Chemical Reactions and Equation

Edit
MCQ▾

Question

Which of the following reactions will not occur?

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

Question number: 689

» Light - Reflection and Refraction

Edit
MCQ▾

Question

Which of the following is not correct for use of concave lens?

Choices

Choice (4) Response

a.

Microscope

b.

Reflectors

c.

Street Light

d.

Flashlight

Question number: 690

» Our Environment and Its Management

Edit
MCQ▾

Question

Select among the following the artificial self-sustaining ecosystem

Choices

Choice (4) Response

a.

Pond

b.

Crop field

c.

Forest

d.

Lake

Question number: 691

» Light - Reflection and Refraction

Edit
MCQ▾

Question

Read the given statement and mark the correct option.

Statement 1: For concave mirror, Object is at the focus (F) is image formed is infinity, real, inverted, and highly magnified

Statement 2: For concave mirror, Object is at infinity, image formed is behind the mirror, virtual, erect, and larger than the object

Choices

Choice (4) Response

a.

Statements 1 and 2 are incorrect

b.

Only statement 1 is correct

c.

Only statement 2 is correct

d.

Statements 1 and 2 are correct

Question number: 692

» Carbon and Its Componds

Edit
MCQ▾

Question

In which of the following is tubes will hydrogen gas be released?

Figure shown the reaction of Ethanol with sodium

Figure Shown the Reaction of Ethanol with Sodium

The reaction of Ethanol with sodium.

Choices

Choice (4) Response

a.

Only Q, R, S

b.

Only P, R, S

c.

Only P, Q

d.

P, Q, R, S

Question number: 693

» Magnetic Effects of Electric Current

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match column I and column II and select the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Source of DC

(i)

Power plant

(B)

Generator

(ii)

Produced electrical current

(C)

Source of AC

(iii)

Detect the presence of electric current in circuit

(D)

Galvanometer

(iv)

Cell

Choices

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

a.

  • (i)
  • (iii)
  • (iv)
  • (ii)

b.

  • (ii)
  • (i)
  • (iii)
  • (iv)

c.

  • (ii)
  • (iv)
  • (iii)
  • (i)

d.

  • (ii)
  • (iii)
  • (iv)
  • (i)