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Amruta Deshmukh from phoenix greens international school, Hyderabad
Subject :NSO    Class : Class 6

Ritu has 500 cm3 of oxygen in a small tank and she wants to transfer all of it to another container. Which of the following containers would be able to hold all the oxygen gas?


AR only
BQ and R
CP, Q and R
DNone of these


There should be a limit on how much we can compress the gas.Are we confidently saying that 500 cm-cube volume can be filled in a 250 cm-cube cylinder?Well and if we have to, will the cylinder construction remain same?If all the gas in the world can be compressed then why do we have to use big tanks or tankers?

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Sarthak Gupta from Delhi Public School Sector 12 R K PURAM, NewDelhi
Subject :NSO    Class : Class 8

A pile of cubes of equal size is arranged in the form of a block as shown in the figure. If the block is dipped into a bucket filled with red paint, so that only the surfaces of the block get coloured, then how many cubes are coloured on three faces only?


A14
B15
C16
D12


Answer should be 17 cause there are 5 cubes with three faces painted at the top. There are also the 2 corner cubes on the first level that have not been considered in the solution. Pls correct this mistake cause you guys dont correct even a single question. Not expected from you :(

Ans 1:

Sarthak Gupta from Delhi Public School Sector 12 R K PURAM, NewDelhi
Class : Class 8

Ans 2:

Sarthak Gupta from Delhi Public School Sector 12 R K PURAM, NewDelhi
Class : Class 8
Answer should be 17 cause there are also the the corner cubes which have 3 face painted which have not been considered in the question. Pls correct this questions you guys dont correct any questions which have been challenged on the forum. Very lousy service not expected :(

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Mohammed Kashif Ahamed from Smt Kamalabai Educational Trust, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C


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AADRIKA KUMAR from MOUNT LITERA ZEE SCHOOL, Kanpur
Subject :NSO    Class : Class 8

Ans 1:

AADRIKA KUMAR from MOUNT LITERA ZEE SCHOOL, Kanpur
Class : Class 5
how many triangles are there in this figure....correct answer is d

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CHIRAG from JINDAL VIDYA MANDIR, RATNAGIRI
Subject :NSO    Class : Class 9

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S Pooja from Kendriya Vidyalaya No 2 Kalpakkam, Kanchipuram
Subject :NSO    Class : Class 2

Ans 1:

Aashi Adwita from Delhi Public School , Secunderabad
Class : Class 2
B

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Naitik Jindal from APEEJAY NOIDA, DELHI
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

Heart, artery and vein of group X are part of circulatory system. Brain and spinal cord of group Y are part of nervous system while liver is a part of digestive system. Kidney, lung and skin of group Z are part of excretory system. Hence, liver cannot be placed in group Y.


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Naveed from shining star public high school , mumbai
Subject :NSO    Class : Class 6

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Ishat from DPS, GURUGRAM
Subject :NSO    Class : Class 8

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Ishat from DPS, GURUGRAM
Subject :NSO    Class : Class 8

A fire can be made by rubbing two objects together such as rubbing two pieces of rock having rough surfaces. Which of the following statements explain why a fire can be made by rubbing two objects together?
(i) Friction slows down moving objects.
(ii) Fire gives out heat and light energy.
(iii) Friction produces heat.
(iv) Fire has no mass.

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


incorrect answer

Ans 1:

Tejashree Colvalcar from Sharda Mandir School, PANAJI GOA
Class : Class 7
the answer is B because fire is caused due to friction not because it gives ot heat and light energy. Sof , could you please clear my doubt

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