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Subject :NSO    Class : Class 8

Pranav, a class VII student collected some China rose petals and placed in a beaker. To this he added some warm water, kept it for some time and then he used this coloured water as an indicator. He collected few samples and tested them with China rose indicator. Which of his observations was/were not correct?
      Sample                     Effect on adding China rose indicator
(i) Soap solution                Turns green
(ii) Curd                             No change
(iii) Soft drink                    Turns dark pink
(iv) Antacid tablet              Turns green

A(i) and (ii)
B(ii) only
C(ii), (iii) and (iv)
D(i) and (iii)


this question's answer according to the sofolympiad trainer website is option C. the answer given by the website is wrong, isn't it?

Ans 1:

Class : Class 8
B is correct antacids are basic since they are made for curing stomah acidity so it will turn the indicator to green.

Ans 2:

Class : Class 10
Any link with Lopamudra Raut? :-)

Ans 3:

Class : Class 8
The correct option is B.Because curd is acidic and the indicator should have changed to dark pink color.

Ans 4:

Class : Class 8
It should be b

Ans 5:

Class : Class 6
yes answer should be B

Ans 6:

Class : Class 8
I think the answer which they told is wrong. The ans should be B.

Ans 7:

Class : Class 7
Answer should be b

Ans 8:

Class : Class 9
it should be B as antacids are basic, and they will turn china rose to green

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Ans 2:

Class : Class 5

Ans 3:

Class : Class 8
X can be the harmful and toxic wastes.so as they are released and again gain concentration,the quantity of aquatic animals decrease.Otherwise it was on an increase as the pollution was discharged.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
Option A.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
b

Ans 2:

Class : Class 4
Yes it is B

Ans 3:

Class : Class 3
answer shd be k

Ans 4:

Class : Class 6
The answer is Bbecause A is a Maharashtrian , C is gujurati , D is bengali and B is punjabi which does not live near coastal areas

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Syrup (C) is the correct answer as the other two items are solids, whereas syrup is a liquid. First set is all liquids and third set is all gasses.

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D. The options come in pairs in the body.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Discuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (2)Ans 1:Riddhiman Bose from Don Bosco School, KolkataClass : >Class 3 2 minutes agoDiscuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (1)Ans 1:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.Ans 2:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.

Ans 2:

Class : Class 3
In a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.

Ans 3:

Class : Class 5
Discuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (1)Ans 1:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.

Ans 4:

Class : Class 5
Discuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (3)Ans 1:Riddhiman Bose from Don Bosco School, KolkataClass : >Class 3 2 minutes agoDiscuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (2)Ans 1:Riddhiman Bose from Don Bosco School, KolkataClass : >Class 3 2 minutes agoDiscuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (1)Ans 1:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.Ans 2:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.Ans 2:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.Ans 3:Riddhiman Bose from Don Bosco School, KolkataClass : >Class 3 3 minutes agoDiscuss on ForumQuestion.The fourth level in a food chain ……………..1.Can be a tree2.Can never be a tree3.Can be an herbivore animal4.Can never be an herbivore animal5.Can be a carnivoreWhich of the following can correctly complete the statement? A1, 3, 5 B2, 4, 5 C1, 4, 5 D2, 3, 5 View All Answers (1)Ans 1:Admin from Revisewise, NoidaClass : >Class 3 12 months agoIn a food chain the first level is a producer a plant, second level is a herbivore that feeds on plants, third is a carnivore that feeds on a herbivore and fourth is a carnivore that feeds on other consumers. So, the fourth level cannot be a Tree (option2) or a Herbivore (option4) Though it can be a carnivore (option5). Hence the correct option is B.

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