Question

them is correct or most appropriate. Choose the most appropriate alternative and write it along
the complete answer in the answer booklet.
1] An example of chemical reaction for chemical displacement is
A] 2AgNO, + Cu → Cu(NO), + 2Ag B] CaCl, + Na, Co, - CaCO, + 2NaCl
C NHẠC - HCl + NH,
D] NH + HCl-, NH4Cl
21 The chemical used to remove hardness of water is,
Al Bleaching powder
Bl Copper sulphate
C] Sodium chloride
D] Sodium carbonate
3) The defect in the given circuit diagram is that
A] Direction of the current is wrong
B] Resistor is not included in the diagram
ej Ammeter connection is wrong
D] Plug key is not open
41 The ring structured compound that has the molecular formula of CH, is
A] Benzene
B] Cyclobutane C] Cyclopentane DCyclohexane
5) When we enter partially dark room from a bright day light, it takes some time to ad
the darkness. It is because,
Al pupil of the eye takes time to dictate
B] eye lens focal length is decreased in day light
C] eye lens focal length takes time to adjust
הב​

Answer 1

Answer:

ans of no 41

Explanation:

none of these options