Today test of 5 mcqs with answers explained

 1-Total no of particles in an atom of sulphur (A=16  and Z=8) are

8

16

24

3

2)The path followed by projectile is ??

A hyperbolic 

B circular

C translatory 

D not

3)How does an enzymes increases the rate of a reaction?

A)by bringing the reacting molecule into precise orientation

B)by increasing the rate of tandom collisions of molecule

C)by shifting the point of equilibrium of the reaction

D)by supplying the energy required to starr the reaction

4)

Isobutyl alcohol on oxidation produces a carbonyl compound is called

A. Butanal

B. Methyl propanal

C. Ethanal

D. None

5)

It contains only thick filament

A. I band 

B. H zone

C. A band

D. Sarcomere

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..........your answers in comment section 

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Key with explaination

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....Ans is 24

1)Basically there are three sub atomic particles and for our convince we consider two particles as major  but in general they are three 

Electron+proton+neutron

S0 total 16+8=24

(2nd)

Answer is (none) parabolic 

Trajectory path is followed by rocked 

(3rd)

Answer is C

Enzyme are  catalyst nor a product Nor

 reactant

And  shifting of point of equilibrium is mentioned in question not only equilibrium 

 Shifting point  of equilibrium means of either in forward or backward direction as energy difference hota hai BTW reactants and products 

Precise orientation means direction and catalysed have no link with direction 

(4th)

It gives methyl propanal 

Check book reaction 

Isobutyl alcochol is 2ndry alchochol 

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(5)

It's a book line thick filament extends across A band only