Advertisements
Advertisements
प्रश्न
State the inference drawn from the following observation:
A gas Q turns moist lead acetate paper silvery black. Identify the gas Q.
Advertisements
उत्तर
The gas is H2S.
APPEARS IN
संबंधित प्रश्न
Give balanced chemical equations to prepare the following salts
Lead sulphate from lead carbonate
Define normal salt.
Define a mixed salt.
Name a basic salt.
Name an acidic salt.
State the inference drawn from the following observation :
On carrying out the flame test with a salt P a brick red flame was obtained. What is the cation in P?
Define the following and give two examples in case an acid salt .
From the formula listed below, choose one, in the following case, corresponding to the salt having the given description:
AgCl, CuCO3, CuSO4.5H2O, KNO3, NaCl, NaHSO4, Pb(NO3)2, ZnCO3, ZnSO4.7H2O.
An acid salt.
NaHSO4 is an acid salt.
Match the following in column A with the correct answer from the choices given in column B:
| Column A | Column B |
| 1. Ammonium hydroxide solution | (i) Contains only ions |
| 2. Dilute hydrochloric acid | (ii) Contains only molecules |
| 3. Carbon tetrachloride | (iii) Contains ions and molecules |
