National Science Olympiad Forum By SOF Olympiad Trainer

smarty from VVM , Chennai

Subject :NSO Class : Class 7

Read the given statements and select the correct option.

Statement 1 : Acids are sour in taste while bases are bitter in taste.

Statement 2 : Baking soda does not taste sour.

(A) Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1

(B) Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1

(C) Statement 1 is true, and statement 2 is false

(D) Both statements 1 and 2 are false.

View All Answers (4)

Ans 1:

Kuldeep Battula from Deens Academy, Bengaluru

Class : Class 7

The answer cannot be a as statement 2 is not explaning the first one

Ans 2:

Aparajita from Mount Litera Zee School, Vasco da gama

Class : Class 8

Option B

Ans 3:

Kuldeep Battula from Deens Academy, Bengaluru

Class : Class 7

The answer is option b because both the statements are correct but, infact statement 1 should be the correct explanation of statement 2 because statement 2 just tells us that baking soda does not taste sour it has nothing to explain about statement 1, thus the answer is option 2.

Ans 4:

Aparajita from Mount Litera Zee School, Vasco da gama

Class : Class 8

yes . Sorry I was wrong

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smarty from VVM , Chennai

Subject :NSO Class : Class 7

Which canned drink will remain cold the longest?

(A) P

(B) Q

(C) R

(D) None of these.

View All Answers (1)

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is A.

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Apoorva106 from Little Angels Sr. Sec. School, Sonepat

Subject :NSO Class : Class 8

An experiment is conducted in which pea seeds are planted 10 mm apart in tray I and 1 cm apart in tray II. Both trays are exposed to the same environmental conditions. It is noted that plants grown in tray I are very weak while plants in tray II are healthy.

AThe plants compete for limited available resources
BThe plants are not exposed to sufficient sunlight
CThe plants are grown in nutrient deficient soil
DThe plants suffered a pathogen attack

but 10 mm is equal to 1 cm !!

View All Answers (2)

Ans 1:

Mohak Khetan from Podar International School Powai , Mumbai

Class : Class 8

lol then the question is wrong

Ans 2:

Anjisnu Raha from SBOA School and Junior College, Chennai

Class : Class 9

question is wrong 10 mm=1cm

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Dipam from Podar International School, Aurangabad

Subject :NSO Class : Class 5

The table below shows the different levels of clarity (how easily we can see through) of the air in an area over a year. Jan - Mar Very Clear Apr - Aug Moderately Sep - Dec Very Clear Which of the following can be the reason(s) for the changes during the period of May - July? (A) A volcanic eruption (B) Set up of an industrial factory (C) A period of drought (D) Both (A) and (B)

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chitrab from CS, Kanpur

Subject :NSO Class : Class 4

Refer to the given diagram and select correct examples of X, Y and Z resources of energy.
             X                Y                    Z
A Petroleum       Coal                Hydro energy
B Solar energy    Natural gas       Coal
C Tidal energy    Petroleum         Nuclear energy
D Coal               Nuclear energy    Petroleum

not understanding please clarify

View All Answers (3)

Ans 1:

Jaytra lohia from Lvis - noida, Ghaziabad

Class : Class 5

the answer is b

Ans 2:

B Uppal from Zee School, Nalgonda

Class : Class 4

hi how are u

Ans 3:

Subject :NSO Class : Class 5

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