|
How many families can you identify among the salts given above?
|
|
0
|
2274
|
October 18, 2016
|
|
Write the formulas of the following salts
|
|
0
|
9426
|
October 18, 2016
|
|
Under what soil conditions a farmer would treat the soil of his fields
|
|
1
|
1532
|
October 18, 2016
|
|
What can you conclude about the ideal soil
|
|
1
|
2390
|
October 18, 2016
|
|
Can you now predict what weak and strong bases are?
|
|
0
|
608
|
October 18, 2016
|
|
What is the nature of each substance
|
|
1
|
1476
|
October 18, 2016
|
|
Do you find any change in the copper oxide that is taken into beaker?
|
|
0
|
503
|
October 18, 2016
|
|
Why did the colour of the solution change after adding the HCl solution?
|
|
0
|
1366
|
October 18, 2016
|
|
Why do pickles and sour substances
|
|
1
|
955
|
October 18, 2016
|
|
Can you give example for use of olfactory indicators in daily life?
|
|
0
|
6481
|
October 18, 2016
|
|
What do you conclude from this activity?
|
|
0
|
1384
|
October 18, 2016
|
|
Why do living organism have narrow pH range?
|
|
0
|
2637
|
October 18, 2016
|
|
What will happen pH value of chemicals in our body increases?
|
|
0
|
3410
|
October 18, 2016
|
|
While diluting an acid, why is it recommended that the acid
|
|
1
|
2052
|
October 18, 2016
|
|
Which gas is usually liberated when an acid reacts with a metal?
|
|
1
|
1047
|
October 18, 2016
|
|
You are provided with three test tubes containing distilled water
|
|
1
|
942
|
October 18, 2016
|
|
Are the crystals of salts really dry ? Write an activity to find it
|
|
0
|
6051
|
October 18, 2016
|
|
Collect the salt samples like sodium chloride
|
|
1
|
5340
|
October 18, 2016
|
|
Identify the acids and bases from which they are obtained
|
|
0
|
1056
|
October 18, 2016
|
|
Potassium Sulphate, Sodium Sulphate
|
|
1
|
1565
|
October 18, 2016
|
|
How can we least the pH value of soil?
|
|
1
|
613
|
October 18, 2016
|
|
Write an activity to check the colour change
|
|
1
|
1067
|
October 18, 2016
|
|
Test the pH value of solution
|
|
1
|
22154
|
October 18, 2016
|
|
Write an activity to known whether the acid is strong or weak
|
|
0
|
2293
|
October 18, 2016
|
|
What do you observe when water is mixed with acid or base?
|
|
0
|
2427
|
October 18, 2016
|
|
Do acids produce ions only in aqueous solution ? Prove it
|
|
0
|
5609
|
October 18, 2016
|
|
Repeat the above activity using alkalis
|
|
1
|
16727
|
October 18, 2016
|
|
Write an activity to show that
|
|
1
|
11251
|
October 18, 2016
|
|
Write an activity to show that non - metallic oxide
|
|
1
|
660
|
October 18, 2016
|
|
Write an activity to show that metal oxide
|
|
1
|
993
|
October 18, 2016
|