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) H SO 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 Prove that: 2 · sin ( π / 4 + 0 ) = cos θ+ sin θ
1 + tan θ
Q.2 Prove that: tan ( π / 4 + 0 ) =
1 – tan θ
Q.3 Prove that: sin ( θ- π / 6) + cos ( θ - π / 3) = 3 · sinθ
Q.4 Prove that: cos(350 + A) · cos (350 – B) + sin (350 + A) · sin (350 - B) = cos(A+B)
Go Cool For Exam
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