Take a pinch of lead nitrate and dissolve in `5.0` ml of distilled water in a test tube and add a pinch of KI solution to it. What reactions do you observe?

Take a pinch of lead nitrate and dissolve in 5.0 ml of distilled water in a test tube and add a pinch of KI solution to it. Which type of reaction was it?

Take a pinch of lead nitrate and dissolve in 5.0 ml of distilled water in a test tube and add a pinch of KI solution to it. Write chemical equation to this reactions.

Take white antacid powder with water in a test tube add methyl orange indicator to it. Which colour do you observe ?

Place a few granules of Zn metal in one test tube and add 10 ml of NaOH solution. What is the observation ?

0.115 gm of sodium metal was dissolved in 500 ml of the solution in distilled water. The normality of the solution would be

We can use lime water to test the presence of CO_2 in respiration experiments. What change do you observe in lime water ?

Rearrange the following sentences in a correct order (i)You observe bubbles coming out with a hissing sound. Pass this gas through freshly prepared lime water(ii)Carbondioxide and Calcium Carbonate are formed. Hence it is a chemical change(iii)Take a tea spoon of vinegar in a test tube and odd a pinch of baking soda to it(iv)Lime water changes to milky white showing that the gas sent into the test tube is carbondioxide

Take 10 ml of water in a test tube. Add few sodium hydroxide pellets to it. Touch the bottom of the test tube. How do you feel ?

A student takes about 2ml of ethanoic acid in a test tube and adds a pinch of NaHCO_3 to it. He reports the following. Immediately a colourless and odourless gas evolves with a brisk effervescene. The gas turns lime water milky The gas burns with an explosion when a burning splinter is brought near it The gas extinguishes the burning splinter.

Take some water in a test tube and add concentrated H_2SO_4 to it. Shake the test tube well. If you touch the bottom of the test tube, you feel it as hot. Now, instead of H_2SO_ 4 , if you add NaOH pellets to water in another test tube and touch the bottom, what do you observe?