Sardar Patel College of Engineering 2010 B.Sc Agriculture for competitive - Question Paper

MULTIPLE option ques.
B.Sc Agriculture
(For Competitive Examination)

Which 1 is considered as organic fertilizer?
FYM B Urea C Ammonium sulphate D DAP

The process by which ions are taken into plant roots
Oasis B Absorption C Advection D Adsorption

An oxidative transformation of NH4+ into NO2- is mediated by
Nitrobacter B Urease C Nitrosomonas D Nitrogenase

A by product of coastal salt industry- schoenite is a rich source of plant nutrient
N B P C K D Zn

It has higher CEC
FYM B Humus C Root D Clay

The C : N ratio of the soil are fairly constant ranging from
10 : one to 12 : 1 B 50 : one to 60 : 1 C 1 : 10 to one : 12 D 1 : 10 to 12 : 6

Rock phosphate is applied in
Normal soil B Calcareous soil C Acid soil D Degraded alkali soil

Conversion factor for P to P2O5 is
2.00 B 2.5 C 2.29 D 1.92

According to LCC, which class of land is suitable for wild life
III B VIII C IV D VI

The essentiality of N was established by
E. Gris B De Saussure C Arnon D Lipman

The gram equivalent weight of Na2CO3 is
40 B 53 C 106 D 50

The gram equivalent weight of H2SO4 is
98 B 36.5 C 49 D 63

One angstrom is equal to
10-8 m B 10-9 m C 10-7 m D 10-10 m

One gram equivalent NaOH is equal to
1000 mg NaOH B 40 g NaOH C 4 g NaOH D 10000 mg NaOH

One milli equivalent NaOH is equal to
40 mg NaOH B 4 g NaOH C 1000 mg NaOH D 4000 mg NaOH

Sodium chloride is a salt of
Strong acid – weak base B Weak acid – strong base C Strong acid – strong base D Weak acid – weak base

pH may be described as
Negative log of OH ion concentration B Log of H ion concentration C Negative log of H ion concentration D Log of OH ion concentration

Basicity of H3PO4 is
1 B 2 C 3 D 4

Acidity of Ca(OH)2 is
1 B 2 C 3 D 4

Basicity of oxalic acid (H2C2O4.2H2O) is
1 B 2 C 6 D 3

Earning:   Approval pending.