A. H2SO3
B. HF
C. HNO3
D. K2Cr2O7
Related Mcqs:
- _____________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C ?
A. Borosilicate
B. High silica
C. Supermax
D. Lead - Which of the following metals reacts violently with water ?
A. Mercury
B. Sodium
C. Calcium
D. Magnesium - Fibre glass is a composite material of_________________?
A. Glass fibre in a polymer matrix
B. Glass fibre in a metallic matrix
C. Polymer fibre in a glassy matrix
D. Both ‘b’ & ‘c’ - Biological shield in a nuclear reactor is generally provided to protect against the__________________?
A. α-rays
B. β-rays
C. Gamma rays & neutrons
D. Electrons - Large diameter reinforced cement concrete (RCC) pipes are generally joined by ____________________ joint ?
A. Flanged iron
B. Collar
C. Flexible
D. Expansion - Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?
A. Only
B. Plus variable cost
C. Plus overhead cost
D. Plus selling expenses - ______________ circuit is most commonly used to measure strain with the help of a strain gauge?
A. Ballast
B. Voltage balancing potentiometric
C. Simple current sensitive
D. None of these - The substance used as a smoke screen in warfare is___________________?
A. C2H2
B. SiCl4
C. P2O5
D. PCl5 - M10 index of coke indicates its____________________?
A. Compressive strength
B. Hardness
C. Abrasion resistance
D. Impact strength - The best lubricants for a machine working at high temperature & load is_________________?
A. Grease
B. Solid lubricant
C. Animal oils
D. Mineral oils
