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Q). The process of heating an ore in the absence of air is
A) Roasting
B) Smelting
C) Calcination
D) Corrosion

Q). Cinnabar is the ore of
A) Ag
B) Cu
C) Zn
D) Hg

Q). In which of the following methods, the molten metal is stirred with green wood logs?
A) Distillation
B) Poling
C) Liquation
D) Electrolysis

Q). C – C bond in ethylene is formed by the overlapping of
A) sp² – s orbitals
B) sp – sp orbitals
C) sp² – sp² orbitals
D) sp² – sp orbitals

Q). The distance between two adjacent layers in graphite
A) 3 Å
B) 4 Å
C) 3.35 Å
D) 3.6 Å

Q). General formula of saturated hydrocarbons
A) C_nH2_n+2
B) C_nH2_n
C) C_nH2_n-2
D) C_nH_n

Q). The formula of compound is C₂H₆. What is the formula of next compound in the homologous series?
A) CH₄
B) C₂H₆
C) C₃H₈
D) C₄H₈

Q). The IUPAC name of CH₃-CH₂-CH₂-CHO is
A) Butanol
B) Butanal
C) Butane
D) Butene

Q). Combustion of hydrocarbons is generally accompanied by the evolution of
A) Heat
B) Light
C) Both heat and light
D) Electric current

Q). Which of the following is used as a catalyst in Hydrogenation Process?
A) Cu
B) Fe
C) MnO₂
D) Ni