(a) changed first to red and then to blue In acid blue Litmus changes to Red. Generally, litmus are indicators. And in basic solution red litmus changes to Blue. Hence, Blue litmus first changes its colour to Red and then to Blue. Your answer will be option [A].
(a) changed first to red and then to blue
In acid blue Litmus changes to Red. Generally, litmus are indicators. And in basic solution red litmus changes to Blue. Hence, Blue litmus first changes its colour to Red and then to Blue. Your answer will be option [A].
On the basis of its origin, resources can be classified into:
(C) biotic and abiotic
(C) biotic and abiotic
See lessWhich area was known as the powder keg of Europe?
(B) Italy
(B) Italy
See lessWhich of the following countries did not attend the congress of Vienna?
(D) Switzerland
(D) Switzerland
See lessElle, the measuring unit in Germany was used to measure
(A) Cloth
(A) Cloth
See lessWho said “when France sneezes the rest of Europe catches cold”?
[C] Metternich
[C] Metternich
See lessWhich one of the following countries does not share its boundary with Belgium?
(C) Sweden
(C) Sweden
See lessA blue litmus paper was first dipped in dil. HCl and then in dil. NaOH solution. The colour of the litmus paper will be
(a) changed first to red and then to blue In acid blue Litmus changes to Red. Generally, litmus are indicators. And in basic solution red litmus changes to Blue. Hence, Blue litmus first changes its colour to Red and then to Blue. Your answer will be option [A].
(a) changed first to red and then to blue
See lessIn acid blue Litmus changes to Red. Generally, litmus are indicators. And in basic solution red litmus changes to Blue. Hence, Blue litmus first changes its colour to Red and then to Blue. Your answer will be option [A].
During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to
(C) absorb moisture from the gas
(C) absorb moisture from the gas
See lessIf an object is moving with constant velocity, then the motion is:
[C] uniform motion
[C] uniform motion
See lessIn which of the following cases the motion, the distance moved and the magnitude of displacement are equal?
[A] if the car is moving on a straight road
[A] if the car is moving on a straight road
See less