[D] It gives red colour, pH=3 Universal indicator is mixture of many indicators. Its colour is red at pH=3. Here, according the question you should go with the option [D].
[D] It gives red colour, pH=3
Universal indicator is mixture of many indicators. Its colour is red at pH=3. Here, according the question you should go with the option [D].
[B] (ii) and (iv) When sodium hydroxide in mixed with water, then ionisation takes place, NaOH + H₂O → Na⁺ + OH⁻ + H₂O Hydroxide ions are formed and a lot of heat is generated or released during dissolution.
[B] (ii) and (iv)
When sodium hydroxide in mixed with water, then ionisation takes place,
NaOH + H₂O → Na⁺ + OH⁻ + H₂O
Hydroxide ions are formed and a lot of heat is generated or released during dissolution.
Which of the following acids does not give hydrogen gas reacting with metals (except Mn, Mg)?
[A] HNO₃ HNO₃ on reaction metals (except Mn, Mg) does not give hydrogen gas.
[A] HNO₃
See lessHNO₃ on reaction metals (except Mn, Mg) does not give hydrogen gas.
The correct statements regarding universal indicator is:
[D] It gives red colour, pH=3 Universal indicator is mixture of many indicators. Its colour is red at pH=3. Here, according the question you should go with the option [D].
[D] It gives red colour, pH=3
See lessUniversal indicator is mixture of many indicators. Its colour is red at pH=3. Here, according the question you should go with the option [D].
What happens when sodium hydroxide is mixed in water?
[B] (ii) and (iv) When sodium hydroxide in mixed with water, then ionisation takes place, NaOH + H₂O → Na⁺ + OH⁻ + H₂O Hydroxide ions are formed and a lot of heat is generated or released during dissolution.
[B] (ii) and (iv)
See lessWhen sodium hydroxide in mixed with water, then ionisation takes place,
NaOH + H₂O → Na⁺ + OH⁻ + H₂O
Hydroxide ions are formed and a lot of heat is generated or released during dissolution.
Meristematic tissues is classified as apical, lateral and intercalary on the basis of shape:
[B] False
[B] False
See lessAutecology is the:
b. Relation of an individual to its environment
b. Relation of an individual to its environment
See lessADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?
b. Adenosine deaminase
b. Adenosine deaminase
See lessIn RNAi, genes are silenced using:
c. ds RNA
c. ds RNA
See lessThe trigger for activation of toxin of Bacillus thuringiensis is:
c. Alkaline pH of gut
c. Alkaline pH of gut
See less