1. The value of is- cos (A − 60o) + cos (120o + A)
A. − 1 2 cos AB. 0C. cos AD. sin A cos (A − 60o) + cos (120o + A) = 2cos 90ocos (A + 30o) = 0
Live
Varsity KA Admission Model Test 28
100 questions • 60 minutes • Each correct answer carries +1 mark. Each wrong answer deducts 0.25 mark.
Exam Overview
Total Questions
100 MCQ
Duration
60 minutes
Total Marks
100
Negative Marking
-0.25
Subject-wise Distribution
| General Science | 39 |
| Chemistry | 24 |
| Biology | 14 |
| Physics | 11 |
| English | 10 |
| Mathematics | 2 |
Question Pattern Preview
2. Which one of the following is an RNA virus?
A. TIVB. virus T2C. VacciniaD. HIV
3. Which of the following is a redox reaction?
A. HF + KOH → KF + H2OB. NaCl + AgNO3 → NaNO3 + AgClC. CaCO3 → CaO + CO2D. 2H2S + SO2 → 2H2O + 3S 2H2S 2− + +4 S O2 → 2H2O + 3S 0
4. Rahat will be going to the US, _____ she?
A. isn’tB. won’tC. can’tD. didn’t
5. What is the bond angle of and respectively? NH3 P Cl3
A. & 109.5∘ 120∘B. & 107∘ 100∘C. & 109.5∘ 100∘D. & 107∘ 120∘
6. What is the number of molecules in 2.2 gram gas? CO2
A. 2.5 × 1018B. 3.01 × 1022C. 3.5 × 1020D. 2.5 × 1022 W M = N NA ⇒ N = W M × NA = 2.2 44 × 6.023 × 1023 = 3.01 × 1022