NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Riyaz
Subject: Science
, asked on 28/2/18
do saliva have acid in it
Answer
2
Riyaz
Subject: Science
, asked on 28/2/18
do apples have any acid
Answer
2
Aditya Anand
Subject: Science
, asked on 26/2/18
What is tritomic,tetratomic and polytomic give 3 exampleas of each
Answer
1
Aditya Anand
Subject: Science
, asked on 26/2/18
Please.solve question.no.7
Q.7. What are strong and weak acids. Write their uses.
Answer
3
Aditya Anand
Subject: Science
, asked on 26/2/18
Please solve question no 8
Q.8. Write chemical reaction of copper sulphate with iron gives pherous sulphate and copper.
Answer
1
Maruf Ahmed
Subject: Science
, asked on 24/2/18
What is the
nature
of
Glucose
(C
6
H
12
O
6
),
acidic, basic
or
neutral
?
Answer
4
Yug Shah
Subject: Science
, asked on 7/2/18
Do all acids have hydrogen atom in it
Answer
4
Vritti Gianchandani
Subject: Science
, asked on 30/1/18
List the uses of salt
Answer
1
Arjun
Subject: Science
, asked on 28/1/18
what is omega 3
Answer
1
Pooja Agarwal
Subject: Science
, asked on 12/1/18
Please ans question 22 and 23
22.
10 ml of freshly prepared iron sulphate was taken in each of four test tubes. Strips of copper, magnessium, zinc and aluminum were introduced, each metal in a different test tube. A black residue was obtained. Based on their rate of reaction arrange the metals in increasing order of reactivity and identify the black residue and colour of solution in each test tube.
23.
Priya took a colourless salt X and found on heating a reddish brown gas G is evolved. On leaving the test tube for sometime the residue turned from brown to yellow on cooling. Identify X and G. Write down chemical reaction involved.
Answer
1
Anandh True
Subject: Science
, asked on 11/1/18
examples of elements,mixtures,bases ,alcalie,acids and compounds?
Answer
5
Mohammad Adam
Subject: Science
, asked on 10/1/18
I DONT GET POINTS WHEN MY ANSWERS ARE CORRECT. WHAT IS THE REASON??
.I ONLY NEED ANSWERS FROM MERITNATION EXPERT.
Answer
2
Aman
Subject: Science
, asked on 4/1/18
Give any two salt property ?
Answer
4
Siya Talwar
Subject: Science
, asked on 23/12/17
Solve this :
Q
.
C
O
2
d
i
s
s
o
l
v
e
s
i
n
w
a
t
e
r
t
o
f
o
r
m
(
A
)
C
+
H
2
+
O
2
(
B
)
C
H
4
(
C
)
C
O
(
D
)
H
2
C
O
3
Answer
4
Siya Talwar
Subject: Science
, asked on 23/12/17
Solve this:
Q.66. The insoluble hydroxide is
(A) Ca
O
H
2
(B) NaOH
(C) Fe
O
H
2
(D) KOH
Answer
2
Prev
1
2
3
4
5
Next
What are you looking for?
Q.7. What are strong and weak acids. Write their uses.
Q.8. Write chemical reaction of copper sulphate with iron gives pherous sulphate and copper.
22. 10 ml of freshly prepared iron sulphate was taken in each of four test tubes. Strips of copper, magnessium, zinc and aluminum were introduced, each metal in a different test tube. A black residue was obtained. Based on their rate of reaction arrange the metals in increasing order of reactivity and identify the black residue and colour of solution in each test tube.
23. Priya took a colourless salt X and found on heating a reddish brown gas G is evolved. On leaving the test tube for sometime the residue turned from brown to yellow on cooling. Identify X and G. Write down chemical reaction involved.
.I ONLY NEED ANSWERS FROM MERITNATION EXPERT.
Q.66. The insoluble hydroxide is
(A) Ca
(B) NaOH
(C) Fe
(D) KOH