|
How many families can you identify among the salts given above?
|
|
0
|
2277
|
October 18, 2016
|
|
Write the formulas of the following salts
|
|
0
|
9475
|
October 18, 2016
|
|
Under what soil conditions a farmer would treat the soil of his fields
|
|
1
|
1533
|
October 18, 2016
|
|
What can you conclude about the ideal soil
|
|
1
|
2394
|
October 18, 2016
|
|
Can you now predict what weak and strong bases are?
|
|
0
|
610
|
October 18, 2016
|
|
What is the nature of each substance
|
|
1
|
1477
|
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
|
1367
|
October 18, 2016
|
|
Why do pickles and sour substances
|
|
1
|
958
|
October 18, 2016
|
|
Can you give example for use of olfactory indicators in daily life?
|
|
0
|
6487
|
October 18, 2016
|
|
What do you conclude from this activity?
|
|
0
|
1384
|
October 18, 2016
|
|
Why do living organism have narrow pH range?
|
|
0
|
2639
|
October 18, 2016
|
|
What will happen pH value of chemicals in our body increases?
|
|
0
|
3411
|
October 18, 2016
|
|
While diluting an acid, why is it recommended that the acid
|
|
1
|
2058
|
October 18, 2016
|
|
Which gas is usually liberated when an acid reacts with a metal?
|
|
1
|
1049
|
October 18, 2016
|
|
You are provided with three test tubes containing distilled water
|
|
1
|
948
|
October 18, 2016
|
|
Are the crystals of salts really dry ? Write an activity to find it
|
|
0
|
6076
|
October 18, 2016
|
|
Collect the salt samples like sodium chloride
|
|
1
|
5343
|
October 18, 2016
|
|
Identify the acids and bases from which they are obtained
|
|
0
|
1060
|
October 18, 2016
|
|
Potassium Sulphate, Sodium Sulphate
|
|
1
|
1575
|
October 18, 2016
|
|
How can we least the pH value of soil?
|
|
1
|
616
|
October 18, 2016
|
|
Write an activity to check the colour change
|
|
1
|
1068
|
October 18, 2016
|
|
Test the pH value of solution
|
|
1
|
22191
|
October 18, 2016
|
|
Write an activity to known whether the acid is strong or weak
|
|
0
|
2313
|
October 18, 2016
|
|
What do you observe when water is mixed with acid or base?
|
|
0
|
2433
|
October 18, 2016
|
|
Do acids produce ions only in aqueous solution ? Prove it
|
|
0
|
5611
|
October 18, 2016
|
|
Repeat the above activity using alkalis
|
|
1
|
16886
|
October 18, 2016
|
|
Write an activity to show that
|
|
1
|
11280
|
October 18, 2016
|
|
Write an activity to show that non - metallic oxide
|
|
1
|
664
|
October 18, 2016
|
|
Write an activity to show that metal oxide
|
|
1
|
996
|
October 18, 2016
|