Atom Facts MCQ (Multiple Choice Questions) PDF - 114

MCQ 566: The -1.6x10^-19C is the charge on single

1. electron (e^-)
2. proton (p⁺)
3. neutron (n⁰)
4. positron (e⁺)

MCQ 567: Which statement is incorrect about enzymes?

1. they speed up reactions without being used up
2. they raise the activation energy
3. they are all large molecules
4. they are action-specific

MCQ 568: Transition elements are mostly used in construction materials because they are

1. hard only
2. rigid only
3. flammable
4. hard and rigid

MCQ 569: Ionic bonding is very strong hence it needs a

1. high temperatures
2. low temperatures
3. constant temperature
4. high pressure

MCQ 570: The pair of outer shell electrons which doesn't take part in bonding is called

1. spectators
2. lone pairs
3. spin pairs
4. dative pairs