RRB Non Technical Model Papers 6 with solutions
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Neetu put a red litmus and a blue litmus in a solution of metal oxide. Two of her observations are correct. Mark them.
(1) Red litmus remained red .
(2) Red litmus turned blue.
(3) Blue litmus remained blue.
(4) Blue litmus turned red.
(1) Red litmus remained red .
(2) Red litmus turned blue.
(3) Blue litmus remained blue.
(4) Blue litmus turned red.
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