1. GOKUL ACADEMY OF SCIENCE
15, Near Gajanan High School, New Subhedar Lay-out, Nagpur-24
Ph.No.0712-2743707 & 6466067
Date :06-01-2012 Gokul Retrospection sheet 04 Std :XII - State
( G.R.S. -04)
Biology
Q.1 Ultrafilteration (M-02)
Q.2 Tubular Secretion(Renal Secretion) (M-02)
Q.3 Explain role of kidney in osmoregulation. (M-04)
Chemistry
Q.1 What is the action of the following on phenol
i) dil HNO3 at R.T.
ii) con. HNO3 at 373 k
iii) H2 SO4 at R.T.
iv) H2 SO4 at 373 k.
Physics
Q.1 Write expression for variation of g With depth and latitude.
Q.2 What is communication satellite?
Mathematics
Q.1 cot 4050 · tan( - 4950 ) – tan 5850· cot (-4950) = 0
Q.2 sec 8400 · cot ( - 945) + sin 6000 · tan (-6900) = 3/2
Q.3 sin (900 + A) _ sin(1800 – A ) + tan (270 + A)
cos ( - A ) sin ( - A ) cot ( - A )
Q.4 cosec(900 – A ) · sin (1800 – A) cot( 3600 – A)
sec (1800 + A) · tan(900 + A) · sin (-A)
Go Cool For Exam
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