| Questions |
GUJCET Chemistry Answer Key 2025 |
| For the given reaction how much quantity of electricity in the column is required? |
4 X 9600 C |
| Which of the statements is correct for ΔG and Ecell? |
ΔG is extensive and Ecell is intensive property |
| Half-Life period for a certain zero-order reaction is 10 min then how much time is required for this reaction to complete 100%? |
20 min |
| The half-life radioactive decay of C is 5730 years. An archaeological artifact containing woods had.... |
t = 5730/0.3 log 100/80 |
| According to Arrhenius's equation which of the following statements is correct? |
Increase in temperature or decrease in Activation Energy will increase rate of reaction |
| Select correct reaction for the given rate... |
2A + 3B --> 4C + 3D |
| The highest Mn Fluoride is MnF4 whereas the highest oxide is Mn2O7 because ________. |
Oxygen forms multiple bonds and Fluorine forms single band. |
| Identify the metal whose divalent ion has 'spin only' magnetic moment √35 BM. |
Mn |
| In acidic solution, MnO2-4 convert into ______. |
MnO-4 and MnO2 |
| What is the oxidation state of Ti in Zeigler catalyst? |
+4 |
| Which statement is correct? |
[NiCl4]2-is an outer orbital complex where [Ni(CN)4]2-is an inner orbital complex. |
| What will be the value of Van't Hoff factor (i) for the following coordination compound... |
4 |
| According to crystal field theory, for which of the following coordination... |
[Co(CN)6]3- |
| Which of the following compound is not allylic hallide? |
2-Bromo-2-methyl-But-2-ene |
| How mnay minimum numbers of C-atom containing... |
4 |
| Which of the following compound has the highest reactivity towards... |
1-Bromobutane |
| _______ compound is slowly oxidised bya ir in the presence of light to an extremely poisonous gas, carbonly chloride. |
Trichloromethane |
| Which enzyme is used for fermentation of glucose? |
Zymase |
| Ethanol (on Sulphuric acid at 413K temperature) ---> diethyl ether |
Substitution nucleophilic bimolecular reaction |
| Ientify the functional group present in Vanillin |
-CHO, -OH, -OCH3 |
| For the given reaction, identify the proper reagent |
C5H5NH+ + CrO3Cl- |
| Which reagent is used to distinguish Acetophenone and Benzophenone? |
NaOI |
| For which compound pKa is the highest? |
CH3CH2COOH |
| Which statement is correct for Product X? |
It has one isomer of 2° amine. |
| The most reactive amine towards dilute HCl is _______. |
(CH3)2NH |
Assertion: Only a small amount of HCl is required in reduction of ....
Reason: FeCl2 formed gets hydrolysed to release HCl during the reaction. |
Both Assertion and Reason are correct. Reason gives the correct explanation for the Assertion. |
| Which type of solution of phenol is required to prepare orange dye by coupling reaction? |
alkaline solution of phenol |
| ________ nucleotide is not present in RNA |
Thymine containing |
| Each polypeptide in a protein has amino acids linked with each other in a specific sequence. The sequence of amino acids is called ______ sturtcure of that protein. |
Primary |
| Deficiency of ______ vitamin caused scurvy disease |
Ascorbic acid |
| Reaction with which reagent glucose form oxime? |
NH2OH |
| What will be the mass percentage of aqueous solution of NaOH in which mole fraction of NaOH is 0.2? |
35.71% W/W |
| For which of the following mixture Δmixture H>0? |
C2H5NH2+ C6H5OH
|
| Which is the correct order for solubility of the following compound in n-octane (at identical condition)? |
I < III < IV < I |
| ___________ solution is hypertonic with reference to fluid inside the blood cell. |
1.2 % W/V NaCl |
|
For Daniel cell E=1.1 V, How Kc is represented for reaction occurring in Daniel cell?
|
Kc= 102.2/0.059 |
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