Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
5
×
Mention the kind of each matter of the following figures (element or compound) giving the reason .(H2 , H2O, O2 , HCl , Cl2) ,
H2 element because, its molcule consists of similat atoms , H2O compound because , it consists of different atoms , O2 is element , HCl is compound ,
Oops!
Check
Okay!
Check
5
×
The volume of a mixture of water (200 cm3) with alcohol (300 cm3) equals ..........................because,........
450 ( less than 500 , because, the alcohol molecules inter or spread in the spaces between water molecules.
Oops!
Check
Okay!
Check
×
lifesaver
Give 10 points!
Oops!
×
gold
Win 50 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
×
fairy
Take points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
thief
Give points!
5
10
15
20
25
5
×
Equal volumes of different material have different masses . why?
because, they have different densities. ( D = M / V )
Oops!
Check
Okay!
Check
5
×
It is the simplest pure form of matter which can’t be analyzed chemically into simpler form by simple chemical method
Element
Oops!
Check
Okay!
Check
5
×
Density is the………… of unit volume of the substance, and its measuring unit is …………..
mass, gm/ cm3
Oops!
Check
Okay!
Check
5
×
The intermolecular forces are very strong in………. .(H2O , H2 , O2 , Fe)
Fe ( it is a solid)
Oops!
Check
Okay!
Check
5
×
.No. of protons = ……. , Number of electrons =....,number of neutrons=................for Cl 17 ( (mass number = 35)
Mass number = P + n (17 protons , 17 electrons , 18 neutrons)
Oops!
Check
Okay!
Check
5
×
Balloons of festivals filled with helium rise upwards due to the …. ........
density of helium is less than density of air.
Oops!
Check
Okay!
Check
5
×
When atomic number of an element equals its mass number , this means that there aren't ……in the nucleus of this element.
neutrons ( 1 H 1) ,its mass number = atomic number = 1).
Oops!
Check
Okay!
Check
×
banana
Go to last place!
Oops!
×
seesaw
Swap points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
thief
Give points!
5
10
15
20
25
5
×
The only non-metal liquid is ................, while the only metal liquid is ...................
bromine , mercury
Oops!
Check
Okay!
Check
5
×
The motion in molecules is limited in …..……and the inter molecular forces are very weak in .............
limited in iron (solid )and very weak in oxygen (gas)
Oops!
Check
Okay!
Check
×
thief
Give points!
5
10
15
20
25
×
seesaw
Swap points!
Okay!
×
gift
Win 10 points!
Okay!
×
baam
Lose 15 points!
Oops!
5
×
. A piece of metal its mass is 25gm and its volume is 10cm3, when it is placed in Water it will............ (Water density 1 gm/cm3)
It will sink (Density of metal = mass /volume = 25 /10 = 2.5 larger than water.)
Oops!
Check
Okay!
Check
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies
