Options:
- A. KCI
- B. NaCI
- C. KCI MgCl2 6H2O
- D. Na2CO3. 10H2O
View Answer
C. KCI MgCl2 6H2O
Chemistry
A safe and more reliable method for drying the crystal is__________________?
Options:
- A. Hot air currents
- B. folds of filter paper
- C. oven
- D. Vacuum desiccator
View Answer
D. Vacuum desiccator
A great variety of the organic compounds is due to its property of carbon_________________?
Options:
- A. Show tetravalency
- B. Exhibit catenation
- C. Show isomerism
- D. Can form multiple bonds
View Answer
B. Exhibit catenation
Compounds having same molecular formula but differ in structural formula are called __________________?
Options:
- A. polymer
- B. monomer
- C. isomer
- D. allotropes
View Answer
C. isomer
Pentane and 2-methyl butance have the same_______________?
Options:
- A. Boiling point
- B. Melting point
- C. Percentage composition
- D. Structural formula
View Answer
C. Percentage composition
Which is not heterocyclic compound _______________?
Options:
- A. Furan
- B. Thiophene
- C. Aniline
- D. Pyridine
View Answer
C. Aniline
CuSO4 + Zn?ZnSO4+Cu is___________________?
Options:
- A. Spontaneous reaction
- B. Non-spontaneous reaction
- C. Endothermic
- D. Exothermic
View Answer
A. Spontaneous reaction
Table salt crystallizes with a______________________?
Options:
- A. Face centered cubic lattice
- B. body centered cubic lattice
- C. simple cubic lattice
- D. othorhombic lattice
View Answer
B. body centered cubic lattice
Which one is a conductor but is not malleable ?
Options:
- A. Iron
- B. Graphite
- C. Silver
- D. Platinum
View Answer
B. Graphite
If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?
Options:
- A. Heat of transition
- B. Heat of fusion
- C. Enthalpy change
- D. All of above
View Answer
C. Enthalpy change