The question asks for the main product formed when calcium oxide reacts vigorously with water. This is a common chemical reaction known as the slaking of lime, which is exothermic.
B) Slaked lime — When calcium oxide (quicklime) reacts with water, it forms calcium hydroxide, which is commonly known as slaked lime. This reaction is highly exothermic and vigorous.
The question asks to identify a specific substance obtained from coal, characterized by being tough, porous, and black. This points to one of the primary products of the destructive distillation of coal.
Correct Option: C) Coke is a tough, porous, and black substance obtained from coal through the process of destructive distillation. It is an almost pure form of carbon and is widely used as a fuel and a reducing agent in the extraction of metals.
This problem involves analyzing a statement of inequalities to determine which of the given conclusions logically follows. We need to break down the given statement into smaller, comparable parts and then check each option against these derived relationships.
The given statement is: \(X > F \geq P > V < Z < K \leq O\)
We will analyze each option by comparing the elements mentioned in the option using the given statement.
B) \(O > V\)
As derived in the step-by-step analysis, the chain \(V < Z < K \leq O\) directly implies \(V < O\), which is equivalent to \(O > V\).
High blood pressure, or hypertension, is a condition where the force of blood against the artery walls is too high. This question asks about the physiological cause of this increased pressure. We need to understand how changes in blood vessels affect blood pressure.
C) Constriction of arterioles — When arterioles constrict, their lumen (inner diameter) narrows. This increases the resistance to blood flow, making the heart work harder to pump blood through these narrowed vessels, which results in elevated blood pressure.
The 73rd amendment of the Constitution of India has made a provision for the mandatory creation of the Gram Sabha. What does the Gram Sabha comprise?
All senior citizens registered as voters in the Panchayat area
All male members registered as voters in the Panchayat area
All adult members in the Panchayat area
Adult members registered as voters in the Panchayat area
The question asks about the composition of the Gram Sabha as mandated by the 73rd Constitutional Amendment Act. This requires knowledge of the specific provisions related to Panchayati Raj Institutions in India.
Correct Option: D) Adult members registered as voters in the Panchayat area
The problem presents a numerical analogy where the relationship between the first and second numbers, and the third and fourth numbers, must be identified. This relationship then needs to be applied to the fifth number to find the missing sixth number. We need to find a pattern involving multiplication or powers that connects the given pairs.
To find the approximate value, we will round off each number to its nearest whole number or a convenient integer. Then, we will perform the operations (multiplication, subtraction, and addition) in the correct order according to the BODMAS/PEMDAS rule.
Round off the numbers:
Substitute the rounded values into the equation:
The original equation is: \(149.99 \times 30.01 - 109.99 + 30.01 = ?\)
After rounding, it becomes: \(150 \times 30 - 110 + 30 = ?\)
Perform multiplication first (BODMAS/PEMDAS):
\[ 150 \times 30 = 4500 \]Substitute the multiplication result back into the equation:
\[ 4500 - 110 + 30 = ? \]Perform subtraction and addition from left to right:
So, the approximate value is \(4420\).
C) 4420 is the closest approximate value.
What will come in the place of the question mark (?) in the following equation, if ‘×’ is replaced with ‘÷’ and ‘−’ is replaced with ‘×’?
14 × 2 − 5 + 56 ÷ 8 =?
This problem involves substituting given mathematical operators with new ones and then evaluating the expression according to the order of operations (BODMAS/PEMDAS).
After substitution, the expression becomes:
\[ 14 \div 2 \times 5 + 56 \div 8 \]First, perform division and multiplication from left to right, then addition.
First division: \(14 \div 2 = 7\)
The expression becomes: \(7 \times 5 + 56 \div 8\)
Second division: \(56 \div 8 = 7\)
The expression becomes: \(7 \times 5 + 7\)
\(7 \times 5 = 35\)
The expression becomes: \(35 + 7\)
\(35 + 7 = 42\)
D) 42 — After substituting the operators and following the order of operations, the expression evaluates to 42.
The problem presents a number series: 4, ?, 14, 19, 24. We need to identify the pattern in the series to find the missing number. We will look for a common difference or a common ratio between consecutive terms.
B) 9 — The missing number is 9, as it maintains the arithmetic progression with a common difference of 5.
The question asks to identify the ministry responsible for introducing the National Anti-Doping Bill, 2022. This requires knowledge of which government ministry oversees sports-related legislation and policy in India.
Correct Option: B) Ministry of Youth Affairs and Sports